diff --git a/free-programming-books-es.md b/free-programming-books-es.md
index c6824173c..b1b82c52b 100644
--- a/free-programming-books-es.md
+++ b/free-programming-books-es.md
@@ -150,7 +150,7 @@
 
 ### Erlang
 
-* [Programación en Erlang](https://es.wikibooks.org/wiki/Programaci%C3%B3n_en_Erlang) (WikiLibros)
+* [Programación en Erlang](https://es.wikibooks.org/wiki/Programaci%C3%B3n_en_Erlang) - WikiLibros
 
 
 ### Emacs
@@ -243,7 +243,7 @@
 
 * [Bases de la programación en Bash](http://xinfo.sourceforge.net/documentos/bash-scripting/bash-script-2.0.html) (HTML)
 * [BASH Scripting Avanzado: Utilizando declare para definición de tipo](https://web.archive.org/web/20150307181233/http://library.originalhacker.org:80/biblioteca/articulo/ver/123) (descarga directa)
-* [El Manual de BASH Scripting Básico para Principiantes](https://es.wikibooks.org/wiki/El_Manual_de_BASH_Scripting_B%C3%A1sico_para_Principiantes) (WikiLibros)
+* [El Manual de BASH Scripting Básico para Principiantes](https://es.wikibooks.org/wiki/El_Manual_de_BASH_Scripting_B%C3%A1sico_para_Principiantes) - WikiLibros
 * [El manual del Administrador de Debian](https://debian-handbook.info/browse/es-ES/stable/) (HTML) [(PDF, ePub, Mobi)](https://debian-handbook.info/get/now/)
 
 
diff --git a/free-programming-books-fi.md b/free-programming-books-fi.md
index 4fd3a3ee5..ff8d6bbc6 100644
--- a/free-programming-books-fi.md
+++ b/free-programming-books-fi.md
@@ -10,33 +10,33 @@
 
 ### C
 
-* [C](https://fi.wikibooks.org/wiki/C)
+* [C](https://fi.wikibooks.org/wiki/C) - Wikikirjasto
 * [C-ohjelmointi](http://www.ohjelmointiputka.net/oppaat/opas.php?tunnus=c_esittaja)
 
 
 ### C++
 
-* [C++](https://fi.wikibooks.org/wiki/C%2B%2B)
+* [C++](https://fi.wikibooks.org/wiki/C%2B%2B) - Wikikirjasto
 
 
 ### JavaScript
 
-* [JavaScript](https://fi.wikibooks.org/wiki/JavaScript)
+* [JavaScript](https://fi.wikibooks.org/wiki/JavaScript) - Wikikirjasto
 
 
 ### PHP
 
-* [PHP](https://fi.wikibooks.org/wiki/PHP)
+* [PHP](https://fi.wikibooks.org/wiki/PHP) - Wikikirjasto
 * [PHP-ohjelmointi](http://www.ohjelmointiputka.net/oppaat/opas.php?tunnus=php_01)
 
 
 ### Python
 
-* [Python 2](https://fi.wikibooks.org/wiki/Python_2)
-* [Python 3](https://fi.wikibooks.org/wiki/Python_3)
+* [Python 2](https://fi.wikibooks.org/wiki/Python_2) - Wikikirjasto
+* [Python 3](https://fi.wikibooks.org/wiki/Python_3) - Wikikirjasto
 * [Python-ohjelmointi](http://www.ohjelmointiputka.net/oppaat/opas.php?tunnus=python3_01)
 
 
 ### Ruby
 
-* [Ruby](https://fi.wikibooks.org/wiki/Ruby)
+* [Ruby](https://fi.wikibooks.org/wiki/Ruby) - Wikikirjasto
diff --git a/free-programming-books-pl.md b/free-programming-books-pl.md
index 896879612..db322e43e 100644
--- a/free-programming-books-pl.md
+++ b/free-programming-books-pl.md
@@ -26,13 +26,13 @@
 
 ### 0 - Niezależne od języka programowania
 
-* [Git](https://pl.wikibooks.org/wiki/Git)
+* [Git](https://pl.wikibooks.org/wiki/Git) - Wikibooks
 * [Interaktywna platforma do nauki programowania](http://apki.org)
-* [Pisanie OS](https://pl.wikibooks.org/wiki/Pisanie_OS)
+* [Pisanie OS](https://pl.wikibooks.org/wiki/Pisanie_OS) - Wikibooks
 * [Poradnik początkującego programisty](http://www.eioba.pl/a/2eu1/poradnik-poczatkujacego-programisty)
 * [Pro Git](http://git-scm.com/book/pl/)
 * [Programowanie webowe E14](https://www.youtube.com/playlist?list=PLOYHgt8dIdoxOp0wtNk9Sle5WUsBZc6kq)
-* [SVN](https://pl.wikibooks.org/wiki/Subversion)
+* [SVN](https://pl.wikibooks.org/wiki/Subversion) - Wikibooks
 
 
 ### Android
@@ -51,7 +51,7 @@
 * [Kurs C](http://qvazar.pl/kurs-c/kurs-c)
 * [Kurs programowania w języku ANSI C pod systemem UNIX](http://janek.ae.krakow.pl/wiluszt/zajecia/c/ansic/) - Janusz Przewocki, Adam Narbudowicz
 * [Podstawy programowania Unixa/Linuxa](http://www.opcode.eu.org/programing/c_cpp/)
-* [Programowanie w C](https://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf) (PDF)
+* [Programowanie w C](https://upload.wikimedia.org/wikibooks/pl/6/6a/C.pdf) - Wikibooks (PDF)
 * [Programowanie w języku C](http://www.arturpyszczuk.pl/files/c/pwc.pdf) (PDF)
 * [Wgłąb języka C](http://helion.pl/online/wglab/wglab.zip) (ZIP)
 
@@ -90,7 +90,7 @@
 
 ### Haskell
 
-* [Haskell](https://pl.wikibooks.org/wiki/Haskell)
+* [Haskell](https://pl.wikibooks.org/wiki/Haskell) - Wikibooks
 
 
 ### HTML
@@ -137,14 +137,14 @@
 
 * [Kurs Perl](http://zajacmarek.com/2014/10/kurs-perl-cz-1/) - Marek Zając
 * [Kurs PERL](cyberpunk.e-spin.pl/86,41,5/KOD/KURSY-PROGRAMOWANIA/Kurs-PERL)
-* [Wikibooks Perl](https://pl.wikibooks.org/wiki/Perl)
+* [Perl](https://pl.wikibooks.org/wiki/Perl) - Wikibooks
 
 
 ### PHP
 
 * [Kurs PHP](http://phpkurs.pl) - Leszek Krupiński
 * [Kurs PHP OOP](http://cyberpunk.e-spin.pl/86,37,5/KOD/KURSY-PROGRAMOWANIA/Kurs-PHP-OOP)
-* [PHP](https://pl.wikibooks.org/wiki/PHP)
+* [PHP](https://pl.wikibooks.org/wiki/PHP) - Wikibooks
 * [PHP: The Right Way](http://pl.phptherightway.com) - Josh Lockhart
 
 
diff --git a/free-programming-books-ru.md b/free-programming-books-ru.md
index 87e62e019..1bcd28d99 100644
--- a/free-programming-books-ru.md
+++ b/free-programming-books-ru.md
@@ -118,7 +118,7 @@
 
 ### Assembly
 
-* [Ассемблер в Linux для программистов C](https://ru.wikibooks.org/wiki/Ассемблер_в_Linux_для_программистов_C)
+* [Ассемблер в Linux для программистов C](https://ru.wikibooks.org/wiki/Ассемблер_в_Linux_для_программистов_C) - Викиучебник
 * [Ассемблер для чайников](http://av-assembler.ru/asm/afd/assembler-for-dummy.htm)
 * [Микропроцессоры и вычислительные комплексы семейства "Эльбрус"](http://www.mcst.ru/doc/book_121130.pdf) (PDF)
 * [Программирование на языке ассемблера NASM для ОС Unix](http://www.stolyarov.info/books/pdf/nasm_unix.pdf) - Андрей Столяров (PDF)
@@ -136,7 +136,7 @@
 * [Разработка сетевых приложений](http://zed.karelia.ru/mmedia/docs/nets.pdf) (PDF)
 * [Руководство по языку программирования C](https://metanit.com/cpp/c) - Евгений Попов
 * [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)
+* [Язык Си в примерах](https://ru.wikibooks.org/wiki/Язык_Си_в_примерах) - Викиучебник
 
 
 ### C Sharp
@@ -150,7 +150,7 @@
 
 * [Введение в язык программирования С++](http://lib.ru/CPPHB/cpptut.txt_with-big-pictures.html) - Бьерн Страуструп
 * [Введение в язык Си++](http://stolyarov.info/books/cppintro) - Андрей Столяров (PDF)
-* [Вводный курс по объектно-ориентированному программированию на языке Си++](http://ru.wikibooks.org/wiki/Си-плюс-плюс)
+* [Вводный курс по объектно-ориентированному программированию на языке Си++](http://ru.wikibooks.org/wiki/Си-плюс-плюс) - Викиучебник
 * [Руководство по языку программирования C++](https://metanit.com/cpp/tutorial) - Евгений Попов
 * [Справочное руководство по C++](http://lib.ru/CPPHB/cppref.txt_with-big-pictures.html) - Бьерн Страуструп
 * [Уроки по OpenGL 3](https://code.google.com/archive/p/gl33lessons/) - Гуревич Артём
@@ -419,7 +419,7 @@
 * [Руководство по языку программирования Python](https://metanit.com/python/tutorial) - Евгений Попов
 * [Самоучитель Python](https://pythonworld.ru/samouchitel-python) (PDF)
 * [Укус Питона](http://wombat.org.ua/AByteOfPython) - Swaroop C H
-* [Учебник Python 2.6](http://ru.wikibooks.org/wiki/Учебник_Python_2.6)
+* [Учебник Python 2.6](https://ru.wikibooks.org/wiki/Учебник_Python_2.6) - Викиучебник
 
 
 #### Django
diff --git a/free-programming-books-se.md b/free-programming-books-se.md
index cb2afb7a0..37c78259c 100644
--- a/free-programming-books-se.md
+++ b/free-programming-books-se.md
@@ -8,12 +8,12 @@
 
 ### C
 
-* [C-programmering](https://sv.wikibooks.org/wiki/C-programmering)
+* [C-programmering](https://sv.wikibooks.org/wiki/C-programmering) - Wikibooks
 
 
 ### C++
 
-* [Programmera spel i C++ för nybörjare](https://sv.wikibooks.org/wiki/Programmera_spel_i_C%2B%2B_f%C3%B6r_nyb%C3%B6rjare)
+* [Programmera spel i C++ för nybörjare](https://sv.wikibooks.org/wiki/Programmera_spel_i_C%2B%2B_f%C3%B6r_nyb%C3%B6rjare) - Wikibooks
 
 
 ### MATLAB
@@ -23,4 +23,4 @@
 
 ### PHP
 
-* [Programmera i PHP](https://sv.wikibooks.org/wiki/Programmera_i_PHP)
+* [Programmera i PHP](https://sv.wikibooks.org/wiki/Programmera_i_PHP) - Wikibooks
diff --git a/free-programming-books.md b/free-programming-books.md
index d9d4d08b4..9088cec6b 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -237,6 +237,7 @@
 * [O'Reilly's Commons](http://commons.oreilly.com/wiki/index.php/O%27Reilly_Commons)
 * [O'Reilly's Open Books Project](http://www.oreilly.com/openbook/)
 * [Papers we love](https://github.com/papers-we-love/papers-we-love)
+* [Programming](https://en.wikibooks.org/wiki/Category%3aComputer_programming) - Wikibooks
 * [Red Gate Books](http://www.red-gate.com/community/books/index)
 * [Stef's Free Online Smalltalk Books](http://stephane.ducasse.free.fr/FreeBooks/)
 * [TechBeamers.com](http://www.techbeamers.com)
@@ -244,12 +245,11 @@
 * [The Definitive C++ Book Guide and List](http://stackoverflow.com/questions/388242/the-definitive-c-book-guide-and-list)
 * [Theassayer.org](http://theassayer.org)
 * [tutorialspoint](http://www.tutorialspoint.com)
-* [Wikibooks: Programming](https://en.wikibooks.org/wiki/Category%3aComputer_programming)
 
 
 ### Graphics Programming
 
-* [Blender 3D: Noob to Pro](https://en.wikibooks.org/wiki/Blender_3D%3A_Noob_to_Pro)
+* [Blender 3D: Noob to Pro](https://en.wikibooks.org/wiki/Blender_3D%3A_Noob_to_Pro) - Wikibooks
 * [Computer Graphics from scratch](http://gabrielgambetta.com/computer-graphics-from-scratch) - Gabriel Gambetta (:construction: *in process*)
 * [DirectX manual](http://user.xmission.com/~legalize/book/download/index.html) (draft)
 * [GPU Gems](https://developer.nvidia.com/gpugems/GPUGems/gpugems_pref01.html)
@@ -380,7 +380,7 @@
 
 * [A Programmer's Guide to Data Mining](http://guidetodatamining.com) - Ron Zacharski (Draft)
 * [Data Jujitsu: The Art of Turning Data into Product](http://www.oreilly.com/data/free/data-jujitsu.csp) (email address *requested*, not required)
-* [Data Mining Algorithms In R](https://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R)
+* [Data Mining Algorithms In R](https://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R) - Wikibooks
 * [Internet Advertising: An Interplay among Advertisers, Online Publishers, Ad Exchanges and Web Users](http://arxiv.org/pdf/1206.1754v2.pdf) (PDF)
 * [Introduction to Data Science](https://docs.google.com/file/d/0B6iefdnF22XQeVZDSkxjZ0Z5VUE/edit?pli=1) - Jeffrey Stanton
 * [Mining of Massive Datasets](http://www.mmds.org)
@@ -459,7 +459,7 @@
 * [Mathematics, MTH101A](http://home.iitk.ac.in/~psraj/mth101/) - P. Shunmugaraj, IIT Kanpur
 * [Number Theory](https://github.com/holdenlee/number-theory) - Holden Lee MIT
 * [OpenIntro Statistics](https://www.openintro.org/stat/textbook.php)
-* [Ordinary Differential Equations](https://en.wikibooks.org/wiki/Ordinary_Differential_Equations)
+* [Ordinary Differential Equations](https://en.wikibooks.org/wiki/Ordinary_Differential_Equations) - Wikibooks
 * [Power Programming with Mathematica](http://mathematica.stackexchange.com/questions/16485/are-you-interested-in-purchasing-david-wagners-power-programming-with-mathemat/22724) - David B. Wagner
 * [Probability and Statistics Cookbook](http://statistics.zone)
 * [Probability and Statistics EBook](http://wiki.stat.ucla.edu/socr/index.php/Probability_and_statistics_EBook)
@@ -760,7 +760,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [A Guide to Ada for C and C++ Programmers](http://www.cs.uni.edu/~mccormic/4740/guide-c2ada.pdf) (PDF)
 * [Ada Distilled](http://www.adapower.com/pdfs/AdaDistilled07-27-2003.pdf) (PDF)
-* [Ada Programming](https://en.wikibooks.org/wiki/Ada_Programming)
+* [Ada Programming](https://en.wikibooks.org/wiki/Ada_Programming) - Wikibooks
 * [Ada Reference Manual - ISO/IEC 8652:2012(E) Language and Standard Libraries](http://www.ada-auth.org/standards/12rm/RM-Final.pdf) (PDF)
 * [The Big Online Book of Linux Ada Programming](http://www.pegasoft.ca/resources/boblap/book.html)
 
@@ -827,7 +827,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Software optimization resources](http://www.agner.org/optimize/) - A. Fog
 * [Wizard Code](http://vendu.twodots.nl/wizardcode.html)
 * [x86-64 Assembly Language Programming with Ubuntu](http://www.egr.unlv.edu/~ed/x86.html) - Ed Jorgensen (PDF)
-* [x86 Assembly](https://en.wikibooks.org/wiki/X86_Assembly)
+* [x86 Assembly](https://en.wikibooks.org/wiki/X86_Assembly) - Wikibooks
 
 
 #### Non-X86
@@ -854,7 +854,7 @@ Kerridge (PDF) (email address *requested*, not required)
 ### Awk
 
 * [A User's Guide for GNU AWK](http://www.math.utah.edu/docs/info/gawk_toc.html)
-* [An Awk Primer](https://en.wikibooks.org/wiki/An_Awk_Primer)
+* [An Awk Primer](https://en.wikibooks.org/wiki/An_Awk_Primer) - Wikibooks
 * [Awk](http://www.grymoire.com/Unix/Awk.html) - Bruce Barnett
 
 
@@ -924,7 +924,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [C# Essentials](http://www.techotopia.com/index.php/C_Sharp_Essentials)
 * [C# Notes for Professionals](http://books.goalkicker.com/CSharpBook/) - Compiled from StackOverflow documentation (3.x)
-* [C# Programming - Wikibook](https://en.wikibooks.org/wiki/C_Sharp_Programming)
+* [C# Programming](https://en.wikibooks.org/wiki/C_Sharp_Programming) - Wikibooks
 * [C# Yellow Book](http://www.csharpcourse.com) (intro to programming)
 * [Creating Mobile Apps with Xamarin.Forms C#](https://developer.xamarin.com/guides/xamarin-forms/creating-mobile-apps-xamarin-forms/)
 * [Daily Design Patterns](https://www.exceptionnotfound.net/downloads/dailydesignpattern.pdf) (PDF)
@@ -990,7 +990,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Clojure for the Brave and True](http://www.braveclojure.com)
 * [Clojure in Small Pieces](http://daly.axiom-developer.org/clojure.pdf) - Rich Hickey (PDF)
 * [Clojure Koans](http://clojurekoans.com)
-* [Clojure Programming](https://en.wikibooks.org/wiki/Clojure_Programming)
+* [Clojure Programming](https://en.wikibooks.org/wiki/Clojure_Programming) - Wikibooks
 * [ClojureScript Koans](http://clojurescriptkoans.com)
 * [ClojureScript Unraveled](https://funcool.github.io/clojurescript-unraveled/) (HTML)
 * [Data Sorcery with Clojure](http://data-sorcery.org/contents/)
@@ -1120,7 +1120,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [Concurrent Programming in ERLANG](http://www.erlang.org/download/erlang-book-part1.pdf) (PDF)
 * [Erlang Handbook](https://github.com/esl/erlang-handbook/raw/master/output/ErlangHandbook.pdf) (PDF)
-* [Erlang Programming](https://en.wikibooks.org/wiki/Erlang_Programming) (HTML)
+* [Erlang Programming](https://en.wikibooks.org/wiki/Erlang_Programming) - Wikibooks (HTML)
 * [Études for Erlang](http://chimera.labs.oreilly.com/books/1234000000726/index.html) - J. David Eisenberg
 * [Getting Started with Erlang User's Guide](http://www.erlang.org/doc/getting_started/users_guide.html) (HTML)
 * [Learn You Some Erlang For Great Good](http://learnyousomeerlang.com) - Frederic Trottier-Hebert
@@ -1137,7 +1137,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [Analyzing and Visualizing Data with F#](https://www.oreilly.com/programming/free/files/analyzing-visualizing-data-f-sharp.pdf) (PDF)
 * [F# for fun and profit](https://www.gitbook.com/book/swlaschin/fsharpforfunandprofit/details) (ePub)
-* [F# Programming](https://en.wikibooks.org/wiki/F_Sharp_Programming) in Wikibooks
+* [F# Programming](https://en.wikibooks.org/wiki/F_Sharp_Programming) - Wikibooks
 * [F# Succinctly, SyncFusion](https://www.syncfusion.com/resources/techportal/ebooks/fsharp) (PDF, Kindle) (email address *requested*, not required)
 * [Programming Language Concepts for Software Developers](http://www.itu.dk/courses/BPRD/E2009/plcsd-1-2.pdf) (PDF)
 
@@ -1263,6 +1263,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Beautiful Code, Compelling Evidence](http://www.renci.org/wp-content/pub/tutorials/BeautifulCode.pdf) (PDF)
 * [Exploring Generic Haskell](http://www.andres-loeh.de/ExploringGH.pdf) - Andres Löh (PDF)
 * [Happy Learn Haskell Tutorial](http://www.happylearnhaskelltutorial.com)
+* [Haskell](https://en.wikibooks.org/wiki/Haskell) - Wikibooks
 * [Haskell and Yesod](http://www.yesodweb.com/book-1.4)
 * [Haskell no panic](http://lisperati.com/haskell/)
 * [Haskell web Programming](http://yannesposito.com/Scratch/fr/blog/Yesod-tutorial-for-newbies/) (Yesod tutorial)
@@ -1272,7 +1273,6 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Real World Haskell](http://book.realworldhaskell.org)
 * [Speeding Through Haskell](http://www.sthaskell.com)
 * [The Haskell Road to Logic, Math and Programming](https://fldit-www.cs.uni-dortmund.de/~peter/PS07/HR.pdf) (PDF)
-* [Wikibook Haskell](https://en.wikibooks.org/wiki/Haskell)
 * [Yet Another Haskell Tutorial](http://hal3.name/docs/daume02yaht.pdf) (PDF)
 
 
@@ -1630,7 +1630,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 ### Julia
 
-* [Introducing Julia wikibook](https://en.wikibooks.org/wiki/Introducing_Julia)
+* [Introducing Julia](https://en.wikibooks.org/wiki/Introducing_Julia) - Wikibooks
 * [Julia by Example](http://samuelcolvin.github.io/JuliaByExample) - Samuel Colvin (GitHub repo)
 * [Julia language: a concise tutorial](https://www.gitbook.com/book/sylvaticus/julia-language-a-concise-tutorial) - Antonello Lobianco (GitBook)
 * [Learn Julia in Y minutes](https://learnxinyminutes.com/docs/julia) - Leah Hanson
@@ -1643,7 +1643,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 * [Arbitrary LaTex Reference](http://latex.knobs-dials.com)
 * [Begin Latex in minutes](https://github.com/VoLuong/Begin-Latex-in-minutes)
-* [LaTeX Wikibook](https://en.wikibooks.org/wiki/LaTeX)
+* [LaTeX](https://en.wikibooks.org/wiki/LaTeX) - Wikibooks
 * [The Not So Short Introduction to LaTeX](https://tobi.oetiker.ch/lshort/lshort.pdf) (PDF)
 
 
@@ -1661,7 +1661,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 ### Linux
 
-* [Ad Hoc Data Analysis From The Unix Command Line](https://en.wikibooks.org/wiki/Ad_Hoc_Data_Analysis_From_The_Unix_Command_Line)
+* [Ad Hoc Data Analysis From The Unix Command Line](https://en.wikibooks.org/wiki/Ad_Hoc_Data_Analysis_From_The_Unix_Command_Line) - Wikibooks
 * [Advanced Linux Programming](https://mentorembedded.github.io/advancedlinuxprogramming/) (PDF)
 * [Automated Linux From Scratch](http://www.linuxfromscratch.org/alfs/download.html)
 * [Getting Started with Ubuntu](http://ubuntu-manual.org)
@@ -1729,8 +1729,8 @@ Kerridge (PDF) (email address *requested*, not required)
 ### Lua
 
 * [Lua 5.1 Reference Manual](http://www.lua.org/manual/5.1/)
+* [Lua Programming](https://en.wikibooks.org/wiki/Lua_Programming) - Wikibooks
 * [Programming in Lua (first edition)](https://www.lua.org/pil/contents.html)
-* [Wikibook](https://en.wikibooks.org/wiki/Lua_Programming)
 
 
 ### Markdown
@@ -1757,7 +1757,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [MATLAB - A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 1](http://www.intechopen.com/books/matlab-a-fundamental-tool-for-scientific-computing-and-engineering-applications-volume-1)
 * [MATLAB - A Ubiquitous Tool for the Practical Engineer](http://www.intechopen.com/books/matlab-a-ubiquitous-tool-for-the-practical-engineer)
 * [MATLAB for Engineers: Applications in Control, Electrical Engineering, IT and Robotics](http://www.intechopen.com/books/matlab-for-engineers-applications-in-control-electrical-engineering-it-and-robotics)
-* [MATLAB Programming](https://en.wikibooks.org/wiki/MATLAB_Programming)
+* [MATLAB Programming](https://en.wikibooks.org/wiki/MATLAB_Programming) - Wikibooks
 * [MATLAB Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/matlab) (PDF, Kindle) (email address *requested*, not required)
 * [Numerical Computing with MATLAB](http://www.mathworks.com/moler/index_ncm.html?requestedDomain=www.mathworks.com&nocookie=true)
 * [Physical Modeling in MATLAB](http://greenteapress.com/matlab/index.html) - Alan B. Downey
@@ -1803,7 +1803,7 @@ Kerridge (PDF) (email address *requested*, not required)
 ### .NET Framework
 
 * [Entity Framework](http://weblogs.asp.net/zeeshanhirani/my-christmas-present-to-the-entity-framework-community)
-* [Game Creation with XNA](https://en.wikibooks.org/wiki/Game_Creation_with_XNA)
+* [Game Creation with XNA](https://en.wikibooks.org/wiki/Game_Creation_with_XNA) - Wikibooks
 * [.NET for Visual FoxPro Developers](http://foxcentral.net/microsoft/NETforVFPDevelopers.htm)
 * [.NET Performance Testing and Optimization - The Complete Guide](http://download.red-gate.com/ebooks/DotNet/Perf_Test_and_opt_eBook.zip) *(RedGate, By Paul Glavich and Chris Farrell)*
 * [Under the Hood of .NET Memory Management](http://download.red-gate.com/ebooks/DotNet/Under_the_Hood_of_.NET_Management.pdf) (PDF) *(RedGate, By Chris Farrell and Nick Harrison)*
@@ -1850,7 +1850,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 ### Octave
 
-* [Octave Programming](https://en.wikibooks.org/wiki/Octave_Programming_Tutorial)
+* [Octave Programming](https://en.wikibooks.org/wiki/Octave_Programming_Tutorial) - Wikibooks
 
 
 ### OpenGL ES
@@ -1871,7 +1871,7 @@ Kerridge (PDF) (email address *requested*, not required)
 
 ### OpenSCAD
 
-* [OpenSCAD User Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual)
+* [OpenSCAD User Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual) - Wikibooks
 
 
 ### TrueOS
@@ -1907,7 +1907,7 @@ Kerridge (PDF) (email address *requested*, not required)
 ### Perl 6 / Rakudo
 
 * [Perl 6 Introduction](http://perl6intro.com)
-* [Perl 6 Programming](https://en.wikibooks.org/wiki/Perl_6_Programming)
+* [Perl 6 Programming](https://en.wikibooks.org/wiki/Perl_6_Programming) - Wikibooks
 * [Think Perl 6](http://greenteapress.com/thinkperl6/thinkperl6.pdf) - Laurent Rosenfeld, with Allen B. Downey (PDF)
 * [Using Perl 6](https://github.com/perl6/book/) (:construction: *in process*)
 
@@ -1937,7 +1937,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [PHP Best Practices](https://phpbestpractices.org)
 * [PHP Internals Book](http://www.phpinternalsbook.com)
 * [PHP Pandas](http://daylerees.com/php-pandas/) - Dayle Rees
-* [PHP Programming](https://en.wikibooks.org/wiki/PHP_Programming)
+* [PHP Programming](https://en.wikibooks.org/wiki/PHP_Programming) - Wikibooks
 * [PHP Security Guide](http://phpsec.org/projects/guide/)
 * [PHP: The Right Way](http://www.phptherightway.com)
 * [PHPUnit Manual](https://phpunit.de/manual/current/en/phpunit-book.pdf) - Sebastian Bergmann (PDF)
@@ -2034,7 +2034,7 @@ Kerridge (PDF) (email address *requested*, not required)
 ### Python
 
 * [20 Python Libraries You Aren't Using (But Should)](http://www.oreilly.com/programming/free/20-python-libraries-you-arent-using-but-should.csp) (email address *requested*, not required)
-* [A Beginner's Python Tutorial](https://en.wikibooks.org/wiki/A_Beginner%27s_Python_Tutorial)
+* [A Beginner's Python Tutorial](https://en.wikibooks.org/wiki/A_Beginner%27s_Python_Tutorial) - Wikibooks
 * [A Byte of Python](https://python.swaroopch.com) (3.x) (HTML, PDF, EPUB, Mobi)
 * [A Guide to Python's Magic Methods](https://github.com/RafeKettler/magicmethods) - Rafe Kettler
 * [A Whirlwind Tour of Python](http://www.oreilly.com/programming/free/files/a-whirlwind-tour-of-python.pdf) - Jake VanderPlas (PDF) [(EPUB, MOBI)](http://www.oreilly.com/programming/free/a-whirlwind-tour-of-python.csp?download=yes)
@@ -2080,8 +2080,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Math for programmers (using python)](https://akuli.github.io/math-tutorial/)
 * [Modeling Creativity: Case Studies in Python](http://www.clips.ua.ac.be/sites/default/files/modeling-creativity.pdf) - Tom D. De Smedt (PDF)
 * [Natural Language Processing with Python](http://www.nltk.org/book/) (3.x)
-* [Non-Programmer's Tutorial for Python 3](https://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_3) (3.3)
-  * [Non-Programmer's Tutorial for Python 2.6](https://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_2.6) (2.6)
+* [Non-Programmer's Tutorial for Python 3](https://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_3) - Wikibooks (3.3)
+  * [Non-Programmer's Tutorial for Python 2.6](https://en.wikibooks.org/wiki/Non-Programmer%27s_Tutorial_for_Python_2.6) - Wikibooks (2.6)
 * [Picking a Python Version: A Manifesto](http://www.oreilly.com/programming/free/from-future-import-python.csp) (email address *requested*, not required)
 * [Porting to Python 3: An In-Depth Guide](http://python3porting.com) (2.6 - 2.x & 3.1 - 3.x)
 * [Practical Programming in Python](https://launchpadlibrarian.net/165489933/PracticalProgrammingPython2014.pdf) - Jeffrey Elkner (PDF)
@@ -2108,7 +2108,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Python Notes for Professionals](http://books.goalkicker.com/PythonBook/) - Compiled from StackOverflow documentation (3.x)
 * [Python Practice Book](http://anandology.com/python-practice-book/index.html) (2.7.1)
 * [Python Practice Projects](http://pythonpracticeprojects.com)
-* [Python Programming](https://upload.wikimedia.org/wikipedia/commons/9/91/Python_Programming.pdf) (PDF) (2.6)
+* [Python Programming](https://en.wikibooks.org/wiki/Python_Programming) - Wikibooks (2.7)
+* [Python Programming](https://upload.wikimedia.org/wikipedia/commons/9/91/Python_Programming.pdf) - Wikibooks (PDF) (2.6)
 * [Scipy Lecture Notes](http://scipy-lectures.github.io)
 * [SICP in Python](http://www-inst.eecs.berkeley.edu/~cs61a/sp12/book/) (3.2)
 * [Snake Wrangling For Kids](http://www.briggs.net.nz/snake-wrangling-for-kids.html) (3.x)
@@ -2124,7 +2125,6 @@ Kerridge (PDF) (email address *requested*, not required)
 * [The Standard Python Library](http://effbot.org/librarybook/) - Fredrik Lundh
 * [Think Complexity](http://greenteapress.com/complexity/) - Allen B. Downey (2nd Edition) (PDF, HTML)
 * [Web2py: Complete Reference Manual, 6th Edition (pre-release)](http://web2py.com/book) (2.5 - 2.x)
-* [Wikibooks: Python Programming](https://en.wikibooks.org/wiki/Python_Programming) (2.7)
 
 
 #### Django
@@ -2188,8 +2188,8 @@ Kerridge (PDF) (email address *requested*, not required)
 * [R Language for Programmers](http://www.johndcook.com/blog/r_language_for_programmers) - John D. Cook
 * [R Packages](http://r-pkgs.had.co.nz) - Hadley Wickham
 * [R Practicals](http://www.columbia.edu/~cjd11/charles_dimaggio/DIRE/resources/R/practicalsBookNoAns.pdf) (PDF)
-* [R Programming](https://en.wikibooks.org/wiki/R_Programming)
-* [R Programming for Data Science](https://bookdown.org/rdpeng/rprogdatascience) - Roger D. Peng
+* [R Programming](https://en.wikibooks.org/wiki/R_Programming) - Wikibooks
+* [R Programming for Data Science](https://leanpub.com/rprogramming) - Roger D. Peng  *(Leanpub account or valid email requested)*
 * [R Succinctly, Syncfusion](https://www.syncfusion.com/resources/techportal/ebooks/rsuccinctly) (PDF, Kindle) (email address *requested*, not required)
 * [The caret Package](http://topepo.github.io/caret/index.html) - Max Kuhn
 * [The R Inferno](http://www.burns-stat.com/pages/Tutor/R_inferno.pdf) - Patrick Burns (PDF)
@@ -2340,7 +2340,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Sketchy LISP: An Introduction to Functional Programming in Scheme](http://www.bcl.hamilton.ie/~nmh/t3x.org/zzz/sketchy-lisp-3rd-ed-pdf.zip) - Nils Holm (ZIP)
 * [Teach Yourself Scheme in Fixnum Days](https://ds26gte.github.io/tyscheme/index-Z-H-1.html)
 * [The Scheme Programming Language: Edition 3](http://www.scheme.com/tspl3/) - [The Scheme Programming Language: Edition 4](http://www.scheme.com/tspl4/)
-* [Write Yourself a Scheme in 48 Hours](https://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours)
+* [Write Yourself a Scheme in 48 Hours](https://en.wikibooks.org/wiki/Write_Yourself_a_Scheme_in_48_Hours) - Wikibooks
 
 
 ### Scilab
@@ -2546,6 +2546,6 @@ Kerridge (PDF) (email address *requested*, not required)
 
 ### xBase (dBase / Clipper / Harbour)
 
-* [Application Development with Harbour](https://en.wikibooks.org/wiki/Application_Development_with_Harbour)
+* [Application Development with Harbour](https://en.wikibooks.org/wiki/Application_Development_with_Harbour) - Wikibooks
 * [CA-Clipper 5.2 Norton Guide](http://www.ousob.com/ng/clguide/)
-* [Clipper Tutorial: a Guide to Open Source Clipper(s)](https://en.wikibooks.org/wiki/Clipper_Tutorial%3A_a_Guide_to_Open_Source_Clipper(s))
+* [Clipper Tutorial: a Guide to Open Source Clipper(s)](https://en.wikibooks.org/wiki/Clipper_Tutorial%3A_a_Guide_to_Open_Source_Clipper(s)) - Wikibooks