PDF indications, now everything should be good

free-programming-books-cs.md

@@ -107,7 +107,7 @@
 
 ### PHP
 
-* [PHP Tvorba interaktivních internetových aplikací](http://www.kosek.cz/php/php-tvorba-interaktivnich-internetovych-aplikaci.pdf)
+* [PHP Tvorba interaktivních internetových aplikací](http://www.kosek.cz/php/php-tvorba-interaktivnich-internetovych-aplikaci.pdf) (PDF)
 
 
 ### Python

free-programming-books-de.md

@@ -30,7 +30,7 @@
 
 * [IT-Handbuch für Fachinformatiker](http://openbook.galileocomputing.de/it_handbuch/)
 * [Objektorientierte Programmierung](http://openbook.galileocomputing.de/oop/)
-* [Scrum und XP im harten Projektalltag](http://www.infoq.com/resource/news/2007/06/scrum-xp-book/en/resources/ScrumAndXpFromTheTrenchesonline_German.pdf) [PDF]
+* [Scrum und XP im harten Projektalltag](http://www.infoq.com/resource/news/2007/06/scrum-xp-book/en/resources/ScrumAndXpFromTheTrenchesonline_German.pdf) (PDF)
 
 
 ### Action Script
@@ -41,7 +41,7 @@
 
 ### Android
 
-* [Grundlagen und Programmierung](http://www.dpunkt.de/ebooks_files/free/3436.pdf) [PDF]
+* [Grundlagen und Programmierung](http://www.dpunkt.de/ebooks_files/free/3436.pdf) (PDF)
 
 
 ### Assembly Language
@@ -52,7 +52,7 @@
 ### C
 
 * [C von A bis Z](http://openbook.galileocomputing.de/c_von_a_bis_z/)
-* [Softwareentwicklung in C](http://www.asc.tuwien.ac.at/~eprog/download/schmaranz.pdf) [PDF]
+* [Softwareentwicklung in C](http://www.asc.tuwien.ac.at/~eprog/download/schmaranz.pdf) (PDF)
 
 
 ### C++
@@ -60,7 +60,7 @@
 * [Die Boost C++ Bibliotheken](http://www.highscore.de/cpp/boost/)
 * [Programmieren in C++: Einführung](http://www.highscore.de/cpp/einfuehrung/)
 * [Programmieren in C++: Aufbau](http://www.highscore.de/cpp/aufbau/)
-* [Softwareprogrammierung in C++](http://www.iaik.tugraz.at/content/teaching/bachelor_courses/betriebssysteme/downloads/schmaranz2.pdf) [PDF]
+* [Softwareprogrammierung in C++](http://www.iaik.tugraz.at/content/teaching/bachelor_courses/betriebssysteme/downloads/schmaranz2.pdf) (PDF)
 
 
 ### C Sharp
@@ -75,7 +75,7 @@
 
 * [Apps programmieren für iPhone und iPad](http://openbook.galileocomputing.de/apps_programmieren_fuer_iphone_und_ipad/)
 * [iOS-Rezepte](http://examples.oreilly.de/openbooks/iosrecipesger.zip)
-* [iPad-Programmierung](http://examples.oreilly.de/openbooks/pdf_ipadprogpragger.pdf) [PDF]
+* [iPad-Programmierung](http://examples.oreilly.de/openbooks/pdf_ipadprogpragger.pdf) (PDF)
 
 
 ### Git
@@ -86,7 +86,7 @@
 
 ### Groovy
 
-* [Groovy für Java-Entwickler](http://examples.oreilly.de/openbooks/pdf_groovyger.pdf)
+* [Groovy für Java-Entwickler](http://examples.oreilly.de/openbooks/pdf_groovyger.pdf) (PDF)
 
 
 ### HTML & CSS
@@ -115,8 +115,8 @@
 
 ### LaTeX
 
-* [LaTeX - eine Einführung und ein bißchen mehr...](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a026_latex_einf.pdf)
-* [LaTeX - Forteschrittene Anwendungen (oder: Neues von den Hobbits)](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a027_latex_fort.pdf)
+* [LaTeX - eine Einführung und ein bißchen mehr...](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a026_latex_einf.pdf) (PDF)
+* [LaTeX - Forteschrittene Anwendungen (oder: Neues von den Hobbits)](http://www.fernuni-hagen.de/imperia/md/content/zmi_2010/a027_latex_fort.pdf) (PDF)
 * [LaTeX : Referenz der Umgebungen, Makros, Längen und Zähler](http://www.lehmanns.de/page/latexreferenz/)
 
 
@@ -134,7 +134,7 @@
 
 * [PHP](http://peterkropff.de/site/php/php.htm) — Peter Kropff (Grundlagen, OOP, MySQLi, PDO) [Online, PDF]
 * [PHP PEAR](http://openbook.galileocomputing.de/php_pear/)
-* [Praktischer Einstieg in MySQL mit PHP](http://examples.oreilly.de/openbooks/pdf_einmysql2ger.pdf) [PDF]
+* [Praktischer Einstieg in MySQL mit PHP](http://examples.oreilly.de/openbooks/pdf_einmysql2ger.pdf) (PDF)
 
 
 ### PostgreSQL
@@ -149,16 +149,16 @@
 
 ### Ruby on Rails
 
-* [Praxiswissen Ruby](http://www.oreilly.de/german/freebooks/rubybasger/pdf_rubybasger.pdf) [PDF]
-* [Praxiswissen Ruby On Rails](http://examples.oreilly.de/openbooks/pdf_rubyonrailsbasger.pdf) [PDF]
-* [Rails Kochbuch](http://examples.oreilly.de/openbooks/pdf_railsckbkger.pdf) [PDF]
+* [Praxiswissen Ruby](http://www.oreilly.de/german/freebooks/rubybasger/pdf_rubybasger.pdf) (PDF)
+* [Praxiswissen Ruby On Rails](http://examples.oreilly.de/openbooks/pdf_rubyonrailsbasger.pdf) (PDF)
+* [Rails Kochbuch](http://examples.oreilly.de/openbooks/pdf_railsckbkger.pdf) (PDF)
 * [Ruby on Rails 2](http://openbook.galileocomputing.de/ruby_on_rails/)
 * [Ruby on Rails 3.2 für Ein-, Um- und Quereinsteiger](http://ruby-auf-schienen.de/3.2/)
 
 
 ### Scilab
 
-* [Einführung in Scilab/Xcos 5.4](http://www.buech-gifhorn.de/scilab/Einfuehrung.pdf) [PDF]
+* [Einführung in Scilab/Xcos 5.4](http://www.buech-gifhorn.de/scilab/Einfuehrung.pdf) (PDF)
 
 
 ### UML

free-programming-books-es.md

@@ -127,13 +127,13 @@
 ### C
 
 * [GNU/Linux: Programación de Sistemas](http://www.alcancelibre.org/filemgmt_data/files/programaciongnulinux.pdf) (PDF)
-* [Introducción a la programación con C](http://repositori.uji.es/xmlui/bitstream/handle/10234/24306/s29.pdf)
+* [Introducción a la programación con C](http://repositori.uji.es/xmlui/bitstream/handle/10234/24306/s29.pdf) (PDF)
 
 
 ### C++
 
-* [Aprenda C++ avanzado como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/avanzado/cppavan.pdf)
-* [Aprenda C++ básico como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/ayudainf/aprendainf/Cpp/basico/cppbasico.pdf)
+* [Aprenda C++ avanzado como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/AyudaInf/aprendainf/cpp/avanzado/cppavan.pdf) (PDF)
+* [Aprenda C++ básico como si estuviera en primero](http://www.tecnun.es/asignaturas/Informat1/ayudainf/aprendainf/Cpp/basico/cppbasico.pdf) (PDF)
 * [Ejercicios de programación creativos y recreativos en C++](http://antares.sip.ucm.es/cpareja/libroCPP/)
 
 
@@ -182,7 +182,7 @@
 ### Haskell
 
 * [¡Aprende Haskell por el bien de todos!](http://aprendehaskell.es/main.html)
-* [Piensa en Haskell (ejercicios de programación funcional con Haskell)](http://www.cs.us.es/~jalonso/publicaciones/Piensa_en_Haskell.pdf)
+* [Piensa en Haskell (ejercicios de programación funcional con Haskell)](http://www.cs.us.es/~jalonso/publicaciones/Piensa_en_Haskell.pdf) (PDF)
 
 
 ### Java
@@ -257,12 +257,12 @@
 
 ### PHP
 
-* [Manual de estudio introductorio al lenguaje PHP procedural](http://www.cursosdeprogramacionadistancia.com/static/pdf/material-sin-personalizar-php.pdf)
+* [Manual de estudio introductorio al lenguaje PHP procedural](http://www.cursosdeprogramacionadistancia.com/static/pdf/material-sin-personalizar-php.pdf) (PDF)
 * [POO y MVC en PHP](http://www.bubok.es/libros/205199/POO-y-MVC-en-PHP)
 * [Silex, el manual oficial](http://librosweb.es/silex/)
 * [Symfony 1.4, la guía definitiva](http://librosweb.es/symfony_1_4/)
 * [Symfony 2.3, el libro oficial](http://librosweb.es/symfony_2_3/)
-* [PHP y Ajax](http://rua.ua.es/dspace/bitstream/10045/13176/9/04-ajaxphp.pdf)
+* [PHP y Ajax](http://rua.ua.es/dspace/bitstream/10045/13176/9/04-ajaxphp.pdf) (PDF)
 * [PHP y Programación orientada a objetos](https://styde.net/php-y-programacion-orientada-a-objetos/)
 
 
@@ -317,14 +317,14 @@
 
 ### R
 
-* [Cartas sobre Estadística de la Revista Argentina de Bioingeniería](http://cran.r-project.org/doc/contrib/Risk-Cartas-sobre-Estadistica.pdf)
-* [Generacion automática de reportes con R y LaTeX](http://cran.r-project.org/doc/contrib/Rivera-Tutorial_Sweave.pdf)
-* [Gráficos Estadísticos con R](http://cran.r-project.org/doc/contrib/grafi3.pdf)
-* [Introducción a R](http://cran.r-project.org/doc/contrib/R-intro-1.1.0-espanol.1.pdf)
-* [Introducción al uso y programación del sistema estadístico R](http://cran.r-project.org/doc/contrib/curso-R.Diaz-Uriarte.pdf)
-* [Métodos Estadísticos con R y R Commander](http://cran.r-project.org/doc/contrib/Saez-Castillo-RRCmdrv21.pdf)
-* [Optimización Matemática con R: Volúmen I](http://cran.r-project.org/doc/contrib/Optimizacion_Matematica_con_R_Volumen_I.pdf)
-* [R para Principiantes](http://cran.r-project.org/doc/contrib/rdebuts_es.pdf)
+* [Cartas sobre Estadística de la Revista Argentina de Bioingeniería](http://cran.r-project.org/doc/contrib/Risk-Cartas-sobre-Estadistica.pdf) (PDF)
+* [Generacion automática de reportes con R y LaTeX](http://cran.r-project.org/doc/contrib/Rivera-Tutorial_Sweave.pdf) (PDF)
+* [Gráficos Estadísticos con R](http://cran.r-project.org/doc/contrib/grafi3.pdf) (PDF)
+* [Introducción a R](http://cran.r-project.org/doc/contrib/R-intro-1.1.0-espanol.1.pdf) (PDF)
+* [Introducción al uso y programación del sistema estadístico R](http://cran.r-project.org/doc/contrib/curso-R.Diaz-Uriarte.pdf) (PDF)
+* [Métodos Estadísticos con R y R Commander](http://cran.r-project.org/doc/contrib/Saez-Castillo-RRCmdrv21.pdf) (PDF)
+* [Optimización Matemática con R: Volúmen I](http://cran.r-project.org/doc/contrib/Optimizacion_Matematica_con_R_Volumen_I.pdf) (PDF)
+* [R para Principiantes](http://cran.r-project.org/doc/contrib/rdebuts_es.pdf) (PDF)
 
 
 ### Scala
@@ -335,8 +335,8 @@
 
 ### SQL
 
-* [El lenguaje SQL](http://ocw.uoc.edu/computer-science-technology-and-multimedia/bases-de-datos/bases-de-datos/P06_M2109_02149.pdf)
-* [Manual de gestión de base de datos](http://www.jorgesanchez.net/bd/gbd2012.pdf)
+* [El lenguaje SQL](http://ocw.uoc.edu/computer-science-technology-and-multimedia/bases-de-datos/bases-de-datos/P06_M2109_02149.pdf) (PDF)
+* [Manual de gestión de base de datos](http://www.jorgesanchez.net/bd/gbd2012.pdf) (PDF)
 * [Tutorial de SQL](http://www.desarrolloweb.com/manuales/9/)
 
 

free-programming-books-gr.md

@@ -1,31 +1,25 @@
 ### Index
 
-* [Bash](#bash)
 * [C++](#c++)
 * [Java](#java)
 * [Python](#python)
 
 
-### Bash
-
-* [Εισαγωγή στον προγραμματισμό κελύφους](https://www.dropbox.com/s/5so6te983bj5v5w/IEEEUCG.pdf?dl=0)
-
-
 ### C++
 
-* [Εισαγωγή στη C++](http://www.ebooks4greeks.gr/2011.Download_free-ebooks/Pliroforikis/glossa_programmatismoy_C++__eBooks4Greeks.gr.pdf)
+* [Εισαγωγή στη C++](http://www.ebooks4greeks.gr/2011.Download_free-ebooks/Pliroforikis/glossa_programmatismoy_C++__eBooks4Greeks.gr.pdf) (PDF)
 
 
 ### Java
 
-* [Εισαγωγή στη γλώσσα προγραμματισμού JAVA](http://www.ebooks4greeks.gr/dowloads/Pliroforiki/Glosses.program./Java__Downloaded_from_eBooks4Greeks.gr.pdf)
-* [Εισαγωγή στη Java](http://www.ebooks4greeks.gr/wp-content/uploads/2013/03/Java-free-book.pdf)
-* [Ηλεκτρονικό εγχειρίδιο της JAVA](http://www.ebooks4greeks.gr/wp-content/uploads/2013/04/java-2012-eBooks4Greeks.gr_.pdf)
-* [Σημειώσεις Java](http://www.ebooks4greeks.gr/wp-content/uploads/2013/03/shmeiwseis-Java-eBooks4Greeks.gr_.pdf)
+* [Εισαγωγή στη γλώσσα προγραμματισμού JAVA](http://www.ebooks4greeks.gr/dowloads/Pliroforiki/Glosses.program./Java__Downloaded_from_eBooks4Greeks.gr.pdf) (PDF)
+* [Εισαγωγή στη Java](http://www.ebooks4greeks.gr/wp-content/uploads/2013/03/Java-free-book.pdf) (PDF)
+* [Ηλεκτρονικό εγχειρίδιο της JAVA](http://www.ebooks4greeks.gr/wp-content/uploads/2013/04/java-2012-eBooks4Greeks.gr_.pdf) (PDF)
+* [Σημειώσεις Java](http://www.ebooks4greeks.gr/wp-content/uploads/2013/03/shmeiwseis-Java-eBooks4Greeks.gr_.pdf) (PDF)
 
 
 ### Python
 
-* [Ένα byte της Python](https://dl.dropboxusercontent.com/u/54790396/a_byte_of_python-el.pdf)
+* [Ένα byte της Python](https://dl.dropboxusercontent.com/u/54790396/a_byte_of_python-el.pdf) (PDF)
 
 

free-programming-books-it.md

@@ -30,12 +30,12 @@
 
 #### Algoritmi e Strutture Dati
 
-* [Dispense del Corso di Algoritmi e Strutture Dati](http://www.dmi.unict.it/nicosia/lectures/programmazione-scientifica/algo.pdf)
+* [Dispense del Corso di Algoritmi e Strutture Dati](http://www.dmi.unict.it/nicosia/lectures/programmazione-scientifica/algo.pdf) (PDF)
 
 
 ### Android
 
-* [Guida programmazione Android 4.2](http://www.sprik.it/guida/Android4_2.pdf)
+* [Guida programmazione Android 4.2](http://www.sprik.it/guida/Android4_2.pdf) (PDF)
 
 
 ### Assembly Language
@@ -45,23 +45,23 @@
 
 ### BASH
 
-* [Guida avanzata per la bash](http://www.dmi.unict.it/diraimondo/web/wp-content/uploads/classes/so/mirror-stuff/abs-guide.pdf)
+* [Guida avanzata per la bash](http://www.dmi.unict.it/diraimondo/web/wp-content/uploads/classes/so/mirror-stuff/abs-guide.pdf) (PDF)
 
 
 ### C
 
-* [Guida al C di Blacklight](http://blacklight.gotdns.org/guidac.pdf)
-* [Tricky C](http://www.ba.infn.it/~pierro/ebook/trickyc.pdf)
+* [Guida al C di Blacklight](http://blacklight.gotdns.org/guidac.pdf) (PDF)
+* [Tricky C](http://www.ba.infn.it/~pierro/ebook/trickyc.pdf) (PDF)
 
 
 ### C Sharp
 
-* [AB..C# - Guida alla programmazione](http://www.youblisher.com/files/publications/4/21542/pdf.pdf)
+* [AB..C# - Guida alla programmazione](http://www.youblisher.com/files/publications/4/21542/pdf.pdf) (PDF)
 
 
 ### GIT
 
-* [Comprendere GIT concettualmente](http://www.linuxtrent.it/sites/default/files/Comprendere%20Git%20concettualmente%20-%20Marco%20Ciampa%20-%20r1.pdf)
+* [Comprendere GIT concettualmente](http://www.linuxtrent.it/sites/default/files/Comprendere%20Git%20concettualmente%20-%20Marco%20Ciampa%20-%20r1.pdf) (PDF)
 
 
 ### Java
@@ -74,16 +74,16 @@
 
 ### Javascript
 
-* [Guida di riferimento](http://www.econ.uniurb.it/laerte/Reti_Internet_1/materiale/JavaScript.pdf)
+* [Guida di riferimento](http://www.econ.uniurb.it/laerte/Reti_Internet_1/materiale/JavaScript.pdf) (PDF)
 
 
 ### LaTeX
 
-* [Appunti di programmazione in LaTeX e TeX - Enrico Gregorio](http://profs.sci.univr.it/~gregorio/introtex.pdf)
-* [Introduzione all'arte della composizione tipografica con LaTeX - GuIT](http://www.guitex.org/home/images/doc/guidaguit-b5.pdf)
-* [L'arte di scrivere con LaTeX - L. Pantieri e T. Gordini](http://www.lorenzopantieri.net/LaTeX_files/ArteLaTeX.pdf)
+* [Appunti di programmazione in LaTeX e TeX - Enrico Gregorio](http://profs.sci.univr.it/~gregorio/introtex.pdf) (PDF)
+* [Introduzione all'arte della composizione tipografica con LaTeX - GuIT](http://www.guitex.org/home/images/doc/guidaguit-b5.pdf) (PDF)
+* [L'arte di scrivere con LaTeX - L. Pantieri e T. Gordini](http://www.lorenzopantieri.net/LaTeX_files/ArteLaTeX.pdf) (PDF)
 * [Una (mica tanto) breve introduzione a LATEX 2ε](http://www.ctan.org/tex-archive/info/lshort/italian)
-* [Impara LaTeX! (... e mettilo da parte) - Marc Baudoin](https://users.dimi.uniud.it/~gianluca.gorni/TeX/itTeXdoc/impara_latex.pdf)
+* [Impara LaTeX! (... e mettilo da parte) - Marc Baudoin](https://users.dimi.uniud.it/~gianluca.gorni/TeX/itTeXdoc/impara_latex.pdf) (PDF)
 
 
 ### Linux
@@ -93,14 +93,14 @@
 
 ### Perl
 
-* [Corso di Perl](http://www.perl.it/documenti/articoli/mb_corso_perl/mb_corso_perl.pdf)
+* [Corso di Perl](http://www.perl.it/documenti/articoli/mb_corso_perl/mb_corso_perl.pdf) (PDF)
 * [Perl e Internet](http://www.ateneonline.it/hyperbook/p_book/perl2.htm)
 
 
 ### PHP
 
-* [Guida al PHP di LordHack](http://www.lordhack.altervista.org/brdp.pdf)
-* [Manuale PHP](http://francescomuscolo.altervista.org/manuale_PHP.pdf)
+* [Guida al PHP di LordHack](http://www.lordhack.altervista.org/brdp.pdf) (PDF)
+* [Manuale PHP](http://francescomuscolo.altervista.org/manuale_PHP.pdf) (PDF)
 
 
 ### Python
@@ -113,11 +113,11 @@
 
 ### Ruby
 
-* [Introduzione a Ruby](http://tesi.cab.unipd.it/22937/1/Tesina_-_Introduzione_a_Ruby.pdf)
+* [Introduzione a Ruby](http://tesi.cab.unipd.it/22937/1/Tesina_-_Introduzione_a_Ruby.pdf) (PDF)
 * [Ruby User Guide](http://ruby-it.org/rug_it.zip)
 * [Programmazione elementare in Ruby](http://minimalprocedure.pragmas.org/writings/programmazione_elementare_ruby/corso_elementare_ruby.html)
 
 
 ### Visual Basic
 
-* [Corso Visual Basic](http://www.webalice.it/kindofapple/corsovb.pdf)
+* [Corso Visual Basic](http://www.webalice.it/kindofapple/corsovb.pdf) (PDF)

free-programming-books-pl.md

@@ -31,7 +31,7 @@
 
 ### C
 
-* [Programowanie w C](http://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf)
+* [Programowanie w C](http://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf) (PDF)
 * [Podstawy programowania Unixa/Linuxa](http://www.opcode.eu.org/more_advanced/programing/c_cpp/)
 
 
@@ -78,9 +78,12 @@
 * [LaTeX. Książka kucharska](http://www.ptm.org.pl/latex-ksiazka-kucharska), Marcin Borkowski, Bartłomiej Przybylski
 * [Nie za krótkie wprowadzeniedo systemu LATEX 2ε](http://www.ctan.org/tex-archive/info/lshort/polish)
 
+
 ### Perl
+
 * [Wikibooks Perl](https://pl.wikibooks.org/wiki/Perl)
 
+
 ### PHP
 
 * [PHP](http://pl.wikibooks.org/wiki/PHP)
@@ -112,6 +115,6 @@
 
 ### SQL
 
-* [SQL i PL/SQL – podstawy](http://jsystems.pl/storage/sqlplsql1.pdf)
+* [SQL i PL/SQL – podstawy](http://jsystems.pl/storage/sqlplsql1.pdf) (PDF)
 * [PL/SQL - podstawy (na stronie)](http://andrzejklusiewicz.blogspot.com/2010/11/kurs-oracle-plsql.html)
 * [SQL - podstawy (na stronie)](http://andrzejklusiewicz.blogspot.com/2010/11/kurs-oracle-sql.html)

free-programming-books-pt_BR.md

@@ -28,7 +28,7 @@
 
 ### C
 
-* [Apostila Linguagem C - Silvio Lago](http://www.ime.usp.br/~slago/slago-C.pdf)
+* [Apostila Linguagem C - Silvio Lago](http://www.ime.usp.br/~slago/slago-C.pdf) (PDF)
 * [Introdução a Programação](https://github.com/edusantana/introducao-a-programacao-livro/releases) - livro adotado na UFPB.
 * [Introdução ao Curso de C ](http://www.ic.unicamp.br/~mc102/introducao-ao-curso-de-c.html).
 * [O Fantástico Mundo da Linguagem C](https://fiorix.wordpress.com/2014/04/12/livro-sobre-c-e-linux/)
@@ -37,8 +37,8 @@
 
 ### CPP
 
-* [Apostila Linguagem C++ - Silvio Lago](http://www.ime.usp.br/~slago/slago-C++.pdf)
-* [Programação Orientada a Objetos em C++](http://www.filoczar.com.br/sistemas_operacionais/linux/cpppara_linux.pdf)
+* [Apostila Linguagem C++ - Silvio Lago](http://www.ime.usp.br/~slago/slago-C++.pdf) (PDF)
+* [Programação Orientada a Objetos em C++](http://www.filoczar.com.br/sistemas_operacionais/linux/cpppara_linux.pdf) (PDF)
 
 
 ### CSharp
@@ -82,7 +82,7 @@
 ### Java
 
 * [Algoritmos e Estruturas de Dados com Java](http://www.caelum.com.br/apostila-java-estrutura-dados/)
-* [Introdução a Ciência da Computação com Java](http://ccsl.ime.usp.br/files/books/intro-java-cc.pdf)
+* [Introdução a Ciência da Computação com Java](http://ccsl.ime.usp.br/files/books/intro-java-cc.pdf) (PDF)
 * [Java e Orientação a Objetos](http://www.caelum.com.br/apostila-java-orientacao-objetos/)
 * [Java para Desenvolvimento Web](http://www.caelum.com.br/apostila-java-web/)
 * [Lab. Java com Testes, JSF e Design Patterns](https://www.caelum.com.br/apostila-java-testes-jsf-web-services-design-patterns/)
@@ -107,16 +107,16 @@
 
 ### Php
 
-* [Curso Linguagem PHP 2000](http://www.etelg.com.br/paginaete/downloads/informatica/php.pdf)
+* [Curso Linguagem PHP 2000](http://www.etelg.com.br/paginaete/downloads/informatica/php.pdf) (PDF)
 * [PHP Do jeito certo](http://br.phptherightway.com/)
 
 
 ### Python
 
-* [Desenvolvimento web com Python e web2py!](https://dl.dropboxusercontent.com/u/830444/apostila_web2py_basico.pdf)
+* [Desenvolvimento web com Python e web2py!](https://dl.dropboxusercontent.com/u/830444/apostila_web2py_basico.pdf) (PDF)
 * [O tutorial de Python](http://turing.com.br/pydoc/2.7/tutorial/)
-* [Python Orientado a Objetos](http://www.dcc.ufrj.br/~fabiom/mab225/pythonoo.pdf)
-* [Python para Desenvolvedores](http://ark4n.files.wordpress.com/2010/01/python_para_desenvolvedores_2ed.pdf)
+* [Python Orientado a Objetos](http://www.dcc.ufrj.br/~fabiom/mab225/pythonoo.pdf) (PDF)
+* [Python para Desenvolvedores](http://ark4n.files.wordpress.com/2010/01/python_para_desenvolvedores_2ed.pdf) (PDF)
 
 
 ### RegEx
@@ -132,13 +132,12 @@
 * [O (comovente) guia de Ruby do Why](http://why.carlosbrando.com/)
 * [Pequeno Livro do Ruby](http://www.sismicro.com.br/ruby/Pequeno-Livro-do-Ruby.php)
 * [Ruby on Rails - Desenv. Ágil para Web com Ruby on Rails](http://www.caelum.com.br/apostila-ruby-on-rails/)
-* [Tutorial de Ruby](http://dl.dropbox.com/u/1482800/eustaquiorangel.com/tutorialruby.pdf)
 
 
 ### Shell
 
-* [Introdução ao Shell Script](http://aurelio.net/shell/apostila-introducao-shell.pdf)
-* [Pequena introdução ao linux e ao Shell Script ](https://www.telecom.uff.br/pet/petws/downloads/apostilas/LINUX.pdf)
+* [Introdução ao Shell Script](http://aurelio.net/shell/apostila-introducao-shell.pdf) (PDF)
+* [Pequena introdução ao linux e ao Shell Script ](https://www.telecom.uff.br/pet/petws/downloads/apostilas/LINUX.pdf) (PDF)
 
 
 ### Vim

free-programming-books-ro.md

@@ -31,7 +31,7 @@
 
 ### MySQL
 
-* [MySQL](http://profs.info.uaic.ro/~busaco/teach/courses/net/docs/mysql-ro.pdf)
+* [MySQL](http://profs.info.uaic.ro/~busaco/teach/courses/net/docs/mysql-ro.pdf) (PDF)
 
 
 ### PHP

free-programming-books-ru.md

@@ -44,8 +44,8 @@
 
 ### Language Agnostic
 
-* [E-maxx.ru: Сборник алгоритмов с примерами на C++](http://e-maxx.ru/upload/e-maxx_algo.pdf)
-* [Scrum и XP: заметки с передовой](http://scrum.org.ua/wp-content/uploads/2008/12/scrum_xp-from-the-trenches-rus-final.pdf)
+* [E-maxx.ru: Сборник алгоритмов с примерами на C++](http://e-maxx.ru/upload/e-maxx_algo.pdf) (PDF)
+* [Scrum и XP: заметки с передовой](http://scrum.org.ua/wp-content/uploads/2008/12/scrum_xp-from-the-trenches-rus-final.pdf) (PDF)
 * [Занимательное программирование. Самоучитель](http://padabum.com/x.php?id=35055) - Мозговой М.В.
 * [Эффективные алгоритмы и сложность вычислений](http://discopal.ispras.ru/Ru.book-advanced-algorithms.htm) - Н. Н. Кузюрин, С. А. Фомин
 
@@ -76,8 +76,8 @@
 
 * [Ассемблер в Linux для программистов C](http://ru.wikibooks.org/wiki/Ассемблер_в_Linux_для_программистов_C)
 * [Ассемблер для чайников](http://av-assembler.ru/asm/afd/assembler-for-dummy.htm)
-* [Программирование на языке ассемблера NASM для ОС Unix](http://www.stolyarov.info/books/pdf/nasm_unix.pdf)
-* [Микропроцессоры и вычислительные комплексы семейства "Эльбрус"](http://www.mcst.ru/doc/book_121130.pdf)
+* [Программирование на языке ассемблера NASM для ОС Unix](http://www.stolyarov.info/books/pdf/nasm_unix.pdf) (PDF)
+* [Микропроцессоры и вычислительные комплексы семейства "Эльбрус"](http://www.mcst.ru/doc/book_121130.pdf) (PDF)
 
 
 ### Bash
@@ -87,7 +87,7 @@
 
 ### C
 
-* [Особенности языка C. Учебное пособие](http://younglinux.info/sites/default/files/programmingC.pdf)
+* [Особенности языка C. Учебное пособие](http://younglinux.info/sites/default/files/programmingC.pdf) (PDF)
 * [Си/Си++. От дилетанта до профессионала](http://ermak.cs.nstu.ru/cprog/html/) - Романов Е.Л.
 * [Язык Си в примерах](http://ru.wikibooks.org/wiki/Язык_Си_в_примерах)
 
@@ -269,7 +269,7 @@
 ### Vim
 
 * [Поваренная Книга Vim](http://www.opennet.ru/docs/RUS/vim_cookbook/) - Steve Oualline
-* [Просто о Vim](http://rus-linux.net/MyLDP/BOOKS/Vim/prosto-o-vim.pdf)
+* [Просто о Vim](http://rus-linux.net/MyLDP/BOOKS/Vim/prosto-o-vim.pdf) (PDF)
 
 
 ### Parallel

free-programming-books-tr.md

@@ -39,7 +39,7 @@
 ### C
 
 * [C Programlama Diline Giriş](http://www1.gantep.edu.tr/~bingul/c/index.php)
-* [C Programlamaya Giriş](https://www.inonu.edu.tr/uploads/old/16/735/c-programlamaya-giris.pdf)
+* [C Programlamaya Giriş](https://www.inonu.edu.tr/uploads/old/16/735/c-programlamaya-giris.pdf) (PDF)
 * [Programlamaya Giriş Ders Notları, H. Turgut Uyar](http://web.itu.edu.tr/uyar/programlama/)
 * [Sistem Programlama ve İleri C Uygulamaları Kurs Notları - Uyarlama 1](http://www.kaanaslan.com/resource/course_note/download_file.php?file_id=16)
 
@@ -51,7 +51,7 @@
 
 ### D
 
-* [D Programlama Dili](http://ddili.org/ders/d/D_Programlama_Dili.pdf)
+* [D Programlama Dili](http://ddili.org/ders/d/D_Programlama_Dili.pdf) (PDF)
 
 
 ### Dart
@@ -98,7 +98,7 @@
 
 ### Kriptoloji
 
-* [Kriptolojiye Giris](http://iam.metu.edu.tr/sites/iam.metu.edu.tr/files/UYGULAMALI%20MATEMAT_Kriptolojiye%20giris%20ders%20notlar%C4%B1.pdf)
+* [Kriptolojiye Giris](http://iam.metu.edu.tr/sites/iam.metu.edu.tr/files/UYGULAMALI%20MATEMAT_Kriptolojiye%20giris%20ders%20notlar%C4%B1.pdf) (PDF)
 
 
 ### LaTeX
@@ -131,7 +131,7 @@
 
 ### Python
 
-* [Bilgisayar Bilimcisi Gibi Düşünmek](http://yzgrafik.ege.edu.tr/~tekrei/dersler/bbgd_p/BBGD_PIO.pdf)
+* [Bilgisayar Bilimcisi Gibi Düşünmek](http://yzgrafik.ege.edu.tr/~tekrei/dersler/bbgd_p/BBGD_PIO.pdf) (PDF)
 * [Python ile Programlama](http://belgeler.istihza.com/py3/)
 
 
@@ -156,4 +156,4 @@
 
 ### Windows Phone
 
-* [Windows Phone'a Uygulama Yazmak](https://mehmetakifsonmez.files.wordpress.com/2013/12/windows-phone-a-uygulama-yazmak.pdf)
+* [Windows Phone'a Uygulama Yazmak](https://mehmetakifsonmez.files.wordpress.com/2013/12/windows-phone-a-uygulama-yazmak.pdf) (PDF)

free-programming-books.md

@@ -412,7 +412,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Linear Algebra, Theory And Applications](http://www.math.byu.edu/klkuttle/linearalgebra.pdf) - Kenneth Kuttler (PDF)
 * [Linear Algebra: An Introduction to Mathematical Discourse](http://en.wikibooks.org/wiki/Linear_Algebra) - Jim Hefferon
 * [Linear Algebra](http://home.iitk.ac.in/~arlal/book/nptel/pdf/book_linear.pdf) - Dr. Arbind K Lal, IIT Kanpur (PDF)
-* [Linear Algebra](https://www.math.ucdavis.edu/~linear/linear-guest.pdf)
+* [Linear Algebra](https://www.math.ucdavis.edu/~linear/linear-guest.pdf) (PDF)
 * [Mathematical Logic - an Introduction](http://www.ii.uib.no/~michal/und/i227/book/book.pdf) (PDF)
 * [Mathematics, MTS 101A](http://home.iitk.ac.in/~psraj/mth101/) - P. Shunmugaraj, IIT Kanpur
 * [Notes on Differential Equations](http://www.math.cornell.edu/~bterrell/dn.pdf) - Robert E. Terrell (PDF)
@@ -438,7 +438,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [97 Things Every Programmer Should Know - Extended](https://leanpub.com/97-Things-Every-Programmer-Should-Know-Extended)
 * [A Mathematical Theory of Communication](http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6773024) - Claude E.Shannon
 * [Asterisk™: The Definitive Guide](http://asteriskdocs.org/en/3rd_Edition/asterisk-book-html-chunk/index.html)
-* [Barcode Overview](http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf)
+* [Barcode Overview](http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf) (PDF)
 * [Come, Let's Play: Scenario-Based Programming Using Live Sequence Charts](http://www.scribd.com/doc/175241338/Come-Let-s-Play)
 * [Communicating Sequential Processes](http://www.usingcsp.com/cspbook.pdf) - Tony Hoare (PDF)
 * [Computer Musings](http://scpd.stanford.edu/knuth/index.jsp) (lectures by Donald Knuth)
@@ -460,11 +460,11 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Hacknot: Essays on Software Development](http://www.lulu.com/shop/ed-johnson/hacknot-essays-on-software-development/ebook/product-17544641.html) - Ed Johnson
 * [High-Performance Scientific Computing](http://bit.ly/hpc12) (class lectures and slides)
 * [How Computers Work](http://www.fastchip.net/howcomputerswork/p1.html)
-* [How to Become a Programmer](http://softwarebyrob.wpengine.netdna-cdn.com/assets/Software_by_Rob%20_How_to_Become_a%20_Programmer_1.0.pdf)
+* [How to Become a Programmer](http://softwarebyrob.wpengine.netdna-cdn.com/assets/Software_by_Rob%20_How_to_Become_a%20_Programmer_1.0.pdf) (PDF)
 * [How to Think Like a Computer Scientist](http://openbookproject.net/thinkcs/) - Peter Wentworth, Jeffrey Elkner, Allen B. Downey, and Chris Meyers
 * [I Am a Bug](http://www.amibug.com/iamabug/p01.html)
 * [Image Processing in C: Analyzing and Enhancing Digital Images](http://homepages.inf.ed.ac.uk/rbf/BOOKS/PHILLIPS/) - Dwayne Phillips
-* [Information Technology and the Networked Economy](http://florida.theorangegrove.org/og/file/49843a6a-9a9d-4bad-b4d4-d053f9cdf73e/1/InfoTechNetworkedEconomy.pdf)
+* [Information Technology and the Networked Economy](http://florida.theorangegrove.org/og/file/49843a6a-9a9d-4bad-b4d4-d053f9cdf73e/1/InfoTechNetworkedEconomy.pdf) (PDF)
 * [Learn to Program](http://pine.fm/LearnToProgram/)
 * [Learning 30 Technologies in 30 Days: A Developer Challenge](https://www.openshift.com/blogs/learning-30-technologies-in-30-days-a-developer-challenge) - Shekhar Gulati
 * [Linked Data Patterns: A pattern catalogue for modelling, publishing, and consuming Linked Data](http://patterns.dataincubator.org/book/) - Leigh Dodds, Ian Davis
@@ -476,10 +476,10 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Object-Oriented Reengineering Patterns](http://win.ua.ac.be/~sdemey/) - Serge Demeyer, Stéphane Ducasse and Oscar Nierstrasz
 * [Open Government;Collaboration, Transparency, and Participation in Practice](https://github.com/oreillymedia/open_government)
 * [PDQ: Pretty Darn Quick: An Agile, All-Purpose Methodology](https://leanpub.com/PDQ) - Jeff Franz-Lien
-* [Philosophy of Computer Science](http://www.cse.buffalo.edu/~rapaport/Papers/phics.pdf)
+* [Philosophy of Computer Science](http://www.cse.buffalo.edu/~rapaport/Papers/phics.pdf) (PDF)
 * [PNG: The Definitive Guide](http://www.libpng.org/pub/png/book/)
 * [Pointers And Memory](http://cslibrary.stanford.edu/102/PointersAndMemory.pdf) (PDF)
-* [Principles of Computer System Design ](http://ocw.mit.edu/resources/res-6-004-principles-of-computer-system-design-an-introduction-spring-2009/online-textbook/part_ii_open_5_0.pdf)
+* [Principles of Computer System Design ](http://ocw.mit.edu/resources/res-6-004-principles-of-computer-system-design-an-introduction-spring-2009/online-textbook/part_ii_open_5_0.pdf) (PDF)
 * [Programmer's Motivation for Beginners](http://programmersmotivation.com/)
 * [Programming with Unicode](http://unicodebook.readthedocs.org/)
 * [Project Oberon](http://www-old.oberon.ethz.ch/WirthPubl/ProjectOberon.pdf) (PDF)
@@ -609,7 +609,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Crypto 101 - Crypto for everyone](https://www.crypto101.io/)
 * [Handbook of Applied Cryptography](http://cacr.uwaterloo.ca/hac/index.html)
 * [How to deal with Passwords](https://github.com/MHM5000/pass)
-* [Intrusion Detection Systems with Snort](http://ptgmedia.pearsoncmg.com/images/0131407333/downloads/0131407333.pdf)
+* [Intrusion Detection Systems with Snort](http://ptgmedia.pearsoncmg.com/images/0131407333/downloads/0131407333.pdf) (PDF)
 * [OpenSSL Cookbook](https://www.feistyduck.com/library/openssl-cookbook/)
 * [OWASP Top 10 for .NET Developers](http://www.troyhunt.com/2011/12/free-ebook-owasp-top-10-for-net.html)
 * [Security Engineering](http://www.cl.cam.ac.uk/~rja14/book.html)
@@ -738,7 +738,7 @@ Original Source: [List of freely available programming books](http://web.archive
 ### Assembly Language
 
 * [An introduction to reverse engineering for beginners](https://github.com/dennis714/RE-for-beginners)
-* [Assembly Language Succinctly](http://www.syncfusion.com/Content/downloads/ebook/Assembly_Language_Succinctly.pdf)
+* [Assembly Language Succinctly](http://www.syncfusion.com/Content/downloads/ebook/Assembly_Language_Succinctly.pdf) (PDF)
 * [Introduction to Reverse Engineering Software](http://althing.cs.dartmouth.edu/local/www.acm.uiuc.edu/sigmil/RevEng/)
 * [Paul Carter's Tutorial on x86 Assembly](http://drpaulcarter.com/pcasm/)
 * [PC Assembly Language](http://drpaulcarter.com/pcasm/) - Paul A. Carter
@@ -824,7 +824,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Programming in C](http://ee.hawaii.edu/~tep/EE160/Book/PDF/) - Bharat Kinariwala & Tep Dobry
 * [The C book](http://publications.gbdirect.co.uk/c_book/)
 * [The Craft of Text Editing or A Cookbook for an Emacs](http://www.finseth.com/craft/) - Craig A. Finseth
-* [The GNU C Programming Tutorial](http://www.crasseux.com/books/ctut.pdf)
+* [The GNU C Programming Tutorial](http://www.crasseux.com/books/ctut.pdf) (PDF)
 * [The little book about OS development](http://littleosbook.github.io/) - Erik Helin, Adam Renberg
 * [The New C Standard - An Annotated Reference](http://www.knosof.co.uk/cbook/cbook.html)
 * [TONC GBA Programming - Game Boy Advance Development](http://www.coranac.com/tonc/text/toc.htm)
@@ -833,7 +833,7 @@ Original Source: [List of freely available programming books](http://web.archive
 
 ### C Sharp
 
-* [Beginners Guide to C# and the.NET Micro Framework](http://www.ghielectronics.com/downloads/FEZ/Beginners%20guide%20to%20NETMF.pdf)
+* [Beginners Guide to C# and the.NET Micro Framework](http://www.ghielectronics.com/downloads/FEZ/Beginners%20guide%20to%20NETMF.pdf) (PDF)
 * [C# Essentials](http://www.techotopia.com/index.php/C_Sharp_Essentials)
 * [C# Programming - Wikibook](http://en.wikibooks.org/wiki/C_Sharp_Programming)
 * [C# Yellow Book](http://www.csharpcourse.com/) (intro to programming)
@@ -855,8 +855,8 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Game Programming Patterns](http://gameprogrammingpatterns.com/)
 * [Google's C++ Style Guide](http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml)
 * [How To Think Like a Computer Scientist: C++ Version](http://greenteapress.com/thinkcpp/index.html) - Allen B. Downey
-* [Introduction to Design Patterns in C++ with Qt](http://ptgmedia.pearsoncmg.com/images/9780131879058/downloads/0131879057_Ezust_book.pdf)
-* [Joint Strike Fighter, C++ Coding Standards, by Bjarne Stroustrup](http://www.stroustrup.com/JSF-AV-rules.pdf)
+* [Introduction to Design Patterns in C++ with Qt](http://ptgmedia.pearsoncmg.com/images/9780131879058/downloads/0131879057_Ezust_book.pdf) (PDF)
+* [Joint Strike Fighter, C++ Coding Standards, by Bjarne Stroustrup](http://www.stroustrup.com/JSF-AV-rules.pdf) (PDF)
 * [Learn C++.](http://www.learncpp.com/) (PDF, Online)
 * [Matters Computational: Ideas, Algorithms, Source Code, by Jorg Arndt](http://www.jjj.de/fxt/fxtbook.pdf) (PDF)
 * [Open Data Structures (In C++)](http://opendatastructures.org/ods-cpp.pdf) (PDF)
@@ -930,7 +930,7 @@ Original Source: [List of freely available programming books](http://web.archive
 
 ### CUDA
 
-* [OpenCL Programming Guide for CUDA Architecture](http://www.nvidia.com/content/cudazone/download/OpenCL/NVIDIA_OpenCL_ProgrammingGuide.pdf)
+* [OpenCL Programming Guide for CUDA Architecture](http://www.nvidia.com/content/cudazone/download/OpenCL/NVIDIA_OpenCL_ProgrammingGuide.pdf) (PDF)
 
 
 ### D
@@ -1041,8 +1041,8 @@ Original Source: [List of freely available programming books](http://web.archive
 ### Fortran
 
 * [Fortran programming language - Wikibooks](http://en.wikibooks.org/wiki/Category%3AFortran_programming_language)
-* [Introduction to fortran 95 and numerical computing: a jump-start for scientists and engineers](http://people.cs.vt.edu/~asandu/Deposit/Fortran95_notes.pdf)
-* [Self Study Guide: Programming in Fortran 95](http://www.mrao.cam.ac.uk/~rachael/compphys/SelfStudyF95.pdf)
+* [Introduction to fortran 95 and numerical computing: a jump-start for scientists and engineers](http://people.cs.vt.edu/~asandu/Deposit/Fortran95_notes.pdf) (PDF)
+* [Self Study Guide: Programming in Fortran 95](http://www.mrao.cam.ac.uk/~rachael/compphys/SelfStudyF95.pdf) (PDF)
 
 
 ### FreeBSD
@@ -1175,7 +1175,7 @@ Original Source: [List of freely available programming books](http://web.archive
 
 ### IDL
 
-* [Getting Started with IDL](http://www.astro.virginia.edu/class/oconnell/astr511/IDLresources/getting-started-IDL-v7.0.pdf)
+* [Getting Started with IDL](http://www.astro.virginia.edu/class/oconnell/astr511/IDLresources/getting-started-IDL-v7.0.pdf) (PDF)
 
 
 ### iOS
@@ -1230,7 +1230,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Java Thin-Client Programming](http://www.redbooks.ibm.com/redbooks/SG245118.html)
 * [Java: A Beginner's Guide](http://www.oracle.com/events/global/en/java-outreach/resources/java-a-beginners-guide-1720064.pdf) - Oracle (PDF)
 * [Learning Java (4th Edition)](http://chimera.labs.oreilly.com/books/1234000001805/index.html) - Patrick Niemeyer
-* [NIO Framework](http://nioframework.sourceforge.net/NIO_Paper.pdf)
+* [NIO Framework](http://nioframework.sourceforge.net/NIO_Paper.pdf) (PDF)
 * [OOP - Learn Object Oriented Thinking & Programming](http://pub.bruckner.cz/titles/oop) - Rudolf Pecinovsky
 * [Open Data Structures (in Java)](http://opendatastructures.org/ods-java.pdf) (PDF)
 * [OSGi in Practice](http://njbartlett.name/files/osgibook_preview_20091217.pdf) (PDF)
@@ -1291,7 +1291,7 @@ Original Source: [List of freely available programming books](http://web.archive
 * [Javascript Succinctly, Syncfusion](http://www.syncfusion.com/resources/techportal/ebooks/javascript) (PDF, Kindle) *(Just fill the fields with any values)*
 * [JavaScript the Right Way](https://github.com/braziljs/js-the-right-way)
 * [jQuery Fundamentals](http://jqfundamentals.com/) (starts with JavaScript basics)
-* [JS Robots](http://markdaggett.com/images/ExpertJavaScript-ch6.pdf)
+* [JS Robots](http://markdaggett.com/images/ExpertJavaScript-ch6.pdf) (PDF)
 * [Leaflet Tips and Tricks: Interactive Maps Made Easy](https://leanpub.com/leaflet-tips-and-tricks) - Malcolm Maclean
 * [Learn to Code JavaScript by Playing a Game](http://codecombat.com)
 * [Learning JavaScript Design Patterns](http://www.addyosmani.com/resources/essentialjsdesignpatterns/book/) - Addy Osmani
@@ -1375,7 +1375,7 @@ See also [TeX](#tex)
 * [The Linux System Administrator's Guide](http://www.tldp.org/LDP/sag/html/index.html)
 * [The Python GTK+ 3 Tutorial](http://python-gtk-3-tutorial.readthedocs.org/en/latest/)
 * [Ubuntu Pocket Guide and Reference](http://www.ubuntupocketguide.com/index_main.html)
-* [Ubuntu Server Guide](https://help.ubuntu.com/14.04/serverguide/serverguide.pdf)
+* [Ubuntu Server Guide](https://help.ubuntu.com/14.04/serverguide/serverguide.pdf) (PDF)
 * [Upstart Intro, Cookbook and Best Practises](http://upstart.ubuntu.com/cookbook/)
 * [What Every Programmer Should Know About Memory](http://www.akkadia.org/drepper/cpumemory.pdf) (PDF)
 
@@ -1419,7 +1419,7 @@ See also [TeX](#tex)
 
 ### Mathematica
 
-* [Basics of Algebra, Topology, and Differential Calculus](http://www.cis.upenn.edu/~jean/math-basics.pdf)
+* [Basics of Algebra, Topology, and Differential Calculus](http://www.cis.upenn.edu/~jean/math-basics.pdf) (PDF)
 * [Mathematica® programming: an advanced introduction by Leonid Shifrin](http://www.mathprogramming-intro.org/)
 * [Stephen Wolfram's The Mathematica Book](http://reference.wolfram.com/legacy/v5_2/)
 * [Vector Math for 3d Computer Graphics](http://chortle.ccsu.edu/VectorLessons/index.html)
@@ -1428,8 +1428,8 @@ See also [TeX](#tex)
 
 ### MATLAB
 
-* [An Interactive Introduction to MATLAB](http://www.science.smith.edu/~jcardell/Courses/EGR326/Intro-to-MATLAB.pdf)
-* [An Introduction to MATLAB](http://www.maths.dundee.ac.uk/ftp/na-reports/MatlabNotes.pdf)
+* [An Interactive Introduction to MATLAB](http://www.science.smith.edu/~jcardell/Courses/EGR326/Intro-to-MATLAB.pdf) (PDF)
+* [An Introduction to MATLAB](http://www.maths.dundee.ac.uk/ftp/na-reports/MatlabNotes.pdf) (PDF)
 * [Applications of MATLAB in Science and Engineering](http://www.intechopen.com/books/applications-of-matlab-in-science-and-engineering)
 * [Experiments with MATLAB](http://www.mathworks.com/moler/exm/index.html)
 * [Freshman Engineering Problem Solving with MATLAB](http://cnx.org/featureContent/mfiles)
@@ -1465,7 +1465,7 @@ See also [TeX](#tex)
 ### MySQL
 
 * [MySQL Essentials](http://www.techotopia.com/index.php/MySQL_Essentials)
-* [MySQL Tutorial Excerpt](http://downloads.mysql.com/docs/mysql-tutorial-excerpt-5.1-en.pdf)
+* [MySQL Tutorial Excerpt](http://downloads.mysql.com/docs/mysql-tutorial-excerpt-5.1-en.pdf) (PDF)
 
 
 ### .NET Framework
@@ -1599,7 +1599,7 @@ See also [TeX](#tex)
   * [Laravel 4 Official Documentation. Synced Daily](https://leanpub.com/l4)
   * [Laravel: Code Bright](http://daylerees.com/codebright)
   * [Official Documentation (Offline Version)](https://leanpub.com/l4-offline-doc)
-* [PHP 5 Power Programming](http://www.informit.com/content/images/013147149X/downloads/013147149X_book.pdf)
+* [PHP 5 Power Programming](http://www.informit.com/content/images/013147149X/downloads/013147149X_book.pdf) (PDF)
 * [PHP Best Practices](https://phpbestpractices.org/)
 * [PHP Essentials](http://www.techotopia.com/index.php/PHP_Essentials)
 * [PHP Internals Book](http://www.phpinternalsbook.com/)
@@ -1677,7 +1677,7 @@ See also [TeX](#tex)
 * [A Beginner's Python Tutorial](http://en.wikibooks.org/wiki/A_Beginner%27s_Python_Tutorial)
 * [A Guide to Python's Magic Methods](https://github.com/RafeKettler/magicmethods) - Rafe Kettler
 * [Automate the Boring Stuff](http://automatetheboringstuff.com/chapter0/) - Al Sweigart
-* [Biopython](http://biopython.org/DIST/docs/tutorial/Tutorial.pdf)
+* [Biopython](http://biopython.org/DIST/docs/tutorial/Tutorial.pdf) (PDF)
 * [Building Skills in Object-Oriented Design (Python)](http://www.itmaybeahack.com/book/oodesign-python-2.1/latex/BuildingSkillsinOODesign.pdf) (PDF) (2.1.1)
 * [Building Skills in Python](http://www.itmaybeahack.com/book/python-2.6/latex/BuildingSkillsinPython.pdf) (PDF) (2.6)
 * [Byte of Python](http://www.swaroopch.com/notes/Python) (2.7.x)
@@ -1691,7 +1691,7 @@ See also [TeX](#tex)
 * [Google's Python Class](https://developers.google.com/edu/python/) (2.4 - 2.x)
 * [Google's Python Style Guide](http://google-styleguide.googlecode.com/svn/trunk/pyguide.html)
 * [Hacking Secret Cyphers with Python](http://inventwithpython.com/hacking/chapters/) - Al Sweigart (3.3)
-* [High Performance Python](http://ianozsvald.com/HighPerformancePythonfromTrainingatEuroPython2011_v0.2.pdf)
+* [High Performance Python](http://ianozsvald.com/HighPerformancePythonfromTrainingatEuroPython2011_v0.2.pdf) (PDF)
 * [Hitchhiker's Guide to Python!](http://docs.python-guide.org/en/latest/) (2.6)
 * [How to Think Like a Computer Scientist: Learning with Python](http://www.greenteapress.com/thinkpython/thinkCSpy/) - Allen B. Downey, Jeff Elkner and Chris Meyers (2.4)
   * [How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html) (3.2)
@@ -1716,7 +1716,7 @@ See also [TeX](#tex)
 * [Practical Programming in Python](https://launchpadlibrarian.net/165489933/PracticalProgrammingPython2014.pdf) - Jeffrey Elkner (PDF)
 * [Problem Solving with Algorithms and Data Structure using Python](http://interactivepython.org/runestone/static/pythonds/index.html) - Bradley N. Miller and David L. Ranum
 * [Program Arcade Games With Python And Pygame](http://programarcadegames.com/) (3.3)
-* [Programming Computer Vision with Python](http://programmingcomputervision.com/downloads/ProgrammingComputerVision_CCdraft.pdf)
+* [Programming Computer Vision with Python](http://programmingcomputervision.com/downloads/ProgrammingComputerVision_CCdraft.pdf) (PDF)
 * [Python 2.7 quick reference](http://infohost.nmt.edu/tcc/help/pubs/python/web/) - New Mexico Tech (2.7)
 * [Python Algorithms](http://kysmykseka.net/koti/wizardry/Programming/Python/Apress%20-%20Python%20Algorithms%20Mastering%20Basic%20Algorithms%20in%20the%20Python%20Language.pdf) (PDF)
 * [Python Bibliotheca](http://openbookproject.net/pybiblio/)
@@ -1774,7 +1774,7 @@ See also [TeX](#tex)
 
 #### Kivy
 
-* [Kivy Programming Guide](http://kivy.org/docs/pdf/Kivy-latest.pdf)
+* [Kivy Programming Guide](http://kivy.org/docs/pdf/Kivy-latest.pdf) (PDF)
 
 
 #### Pandas
@@ -1885,7 +1885,7 @@ See also [TeX](#tex)
 * [Rust by Example](http://rustbyexample.com/)
 * [Rust for Rubyists](http://www.rustforrubyists.com/book/index.html)
 * [The Rust Programming Language](http://doc.rust-lang.org/book/)
-* [Why Rust?](http://www.oreilly.com/programming/free/files/why-rust.pdf)
+* [Why Rust?](http://www.oreilly.com/programming/free/files/why-rust.pdf) (PDF)
 
 
 ### Sage
@@ -1911,7 +1911,7 @@ See also [TeX](#tex)
 * [Scala for Perl 5 Programmers](https://github.com/garu/scala-for-perl5-programmers) - Breno G. de Oliveira
 * [Scala for the Impatient (A1 Scala Level chapters)](http://typesafe.com/resources/book/scala-for-the-impatient) - Cay S. Horstmann
 * [Scala School by Twitter](http://twitter.github.io/scala_school/)
-* [Scala Tutorial](http://www.tutorialspoint.com/scala/scala_tutorial.pdf)
+* [Scala Tutorial](http://www.tutorialspoint.com/scala/scala_tutorial.pdf) (PDF)
 * [tetrix in Scala](http://eed3si9n.com/tetrix-in-scala-html5-book)
 * [The Neophyte's Guide to Scala](http://danielwestheide.com/scala/neophytes.html) - Daniel Westheide
 * [Xtrace](http://github.com/leithaus/XTrace/tree/monadic/src/main/book/content/)

javascript-frameworks-resources.md

@@ -81,7 +81,7 @@
 
 ## Knockout.js
 
-* [Knockout.js Starter](http://dl.e-book-free.com/2013/07/knockoutjs_starter.pdf)
+* [Knockout.js Starter](http://dl.e-book-free.com/2013/07/knockoutjs_starter.pdf) (PDF)
 * [Knockout.js Succinctly](http://www.syncfusion.com/resources/techportal/ebooks/knockoutjs) (PDF, Kindle) *(Just fill the fields with any values)*
 * tech.pro: Knockout.js tutorial video series
   * [Lesson 1 - Introduction](http://tech.pro/tutorial/1562/knockoutjs-lesson-1-introduction)