Removed courses with login page

README.md

@@ -47,7 +47,7 @@ Courses
 - [CPSC 110 - Systematic Program Design [Racket], University of British Columbia](https://www.youtube.com/channel/UC7dEjIUwSxSNcW4PqNRQW8w/playlists?view=1&flow=grid&sort=da)
 - [CS50's Understanding Technology](https://www.youtube.com/playlist?list=PLhQjrBD2T382p8amnvUp1rws1p7n7gJ2p)
 - [CSE 142 Computer Programming I (Java Programming), Spring 2016 - University of Washington](https://courses.cs.washington.edu/courses/cse142/16sp/calendar.shtml)
-- [CS 1301 Intro to computing - Gatech](http://www.cc.gatech.edu/classes/AY2016/cs1301c_fall/)
+- [CS 1301 Intro to computing - Gatech](https://www.cc.gatech.edu/classes/AY2016/cs1301c_fall/)
 - [CS 106A - Programming Methodology, Stanford University](https://see.stanford.edu/Course/CS106A) ([Lecture Videos](https://www.youtube.com/playlist?list=PL84A56BC7F4A1F852))
 - [CS 106B - Programming Abstractions, Stanford University](https://see.stanford.edu/Course/CS106B) ([Lecture Videos](https://www.youtube.com/playlist?list=PLnfg8b9vdpLn9exZweTJx44CII1bYczuk))
 - [CS 106X - Programming Abstractions in C++](http://web.stanford.edu/class/cs106x/) ([Lecture Videos](https://www.youtube.com/playlist?list=PLrivl8gTKLcpIJ-ktHCxMEgWOn8LawYhb))
@@ -87,7 +87,7 @@ Courses
 - [16s-4102 - Algorithms, University of Virginia](http://www.cs.virginia.edu/~shelat/16s-4102/) ([Youtube](https://www.youtube.com/channel/UCxXYk53cSZof2bR_Ax0uJYQ/videos))
 - [CS 170 Algorithms - UCBerkeley](https://cs170.org/) [Fall 2018, Youtube](https://www.youtube.com/watch?v=fd5P-8IQwMY&list=PLkFD6_40KJIx8lWWbE-Uk069aZ1R-W-VU&index=2&t=0s) [Fall 2018,Bilibili](https://www.bilibili.com/video/av43955743/?p=1) [2013 Bilibili](https://www.bilibili.com/video/av26670685/)
 - [ECS 122A - Algorithm Design and Analysis, UC Davis](http://web.cs.ucdavis.edu/~gusfield/cs122f10/videolist.html)
-- [CSEP 521 - Applied Algorithms, Winter 2013 - University of Washington](http://courses.cs.washington.edu/courses/csep521/13wi/) ([Videos](http://courses.cs.washington.edu/courses/csep521/13wi/video/))
+- [CSEP 521 - Applied Algorithms, Winter 2013 - University of Washington](https://courses.cs.washington.edu/courses/csep521/13wi/) ([Videos](https://courses.cs.washington.edu/courses/csep521/13wi/video/))
 - [Data Structures And Algorithms - IIT Delhi](https://nptel.ac.in/courses/106102064/)
 - [Design and Analysis of Algorithms - IIT Bombay](https://nptel.ac.in/courses/106101060/)
 - [Programming, Data Structures and Algorithms - IIT Madras](https://nptel.ac.in/courses/106106127/)
@@ -110,9 +110,6 @@ Courses
 - [CS364A Algorithmic Game Theory, Fall 2013 - Tim Roughgarden Lectures](https://www.youtube.com/playlist?list=PLEGCF-WLh2RJBqmxvZ0_ie-mleCFhi2N4)
 - [CS364B Advanced Mechanism Design, Winter 2014 - Tim Roughgarden Lectures](https://www.youtube.com/playlist?list=PLEGCF-WLh2RI77PL4gwLld_OU9Zh3TCX9)
 - [Algorithms - Aduni](http://aduni.org/courses/algorithms/index.php?view=cw)
-- [Advanced Topics in Algorithms and Datastructures - SS 2005 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/4/252/)
-- [Algorithmentheorie/Algorithms Theory - WS 2013 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/5402/16009/) ([WS 2011](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/4003/12514/))
-- [Theory I - SS 2010 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/2103/8701/)
 - [6.889 - Algorithms for Planar Graphs and Beyond (Fall 2011) MIT](http://courses.csail.mit.edu/6.889/fall11/lectures/)
 - [6.890 Algorithmic Lower Bounds: Fun with Hardness Proofs - MIT OCW](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-890-algorithmic-lower-bounds-fun-with-hardness-proofs-fall-2014/)
 - [Computer Algorithms - 2 - IIT Kanpur](https://nptel.ac.in/courses/106104019/)
@@ -138,7 +135,7 @@ Courses
 	- [CS 377 - Operating Systems, Fall 16 - Umass OS](https://www.youtube.com/playlist?list=PLacuG5pysFbDTmsCRGWsMW_PzIOpXnckw)
 	- [6.828 - Operating System Engineering [Fall 2014]](https://www.youtube.com/playlist?list=PLfciLKR3SgqNJKKIKUliWoNBBH1VHL3AP)
 	- [CSE 30341 - Operating Systems, Spr 2008](https://www.youtube.com/view_play_list?p=AB7D5CA7E262B0E2)
-	- [CSEP 551 Operating Systems Autumn 2014 - University of Washington](http://courses.cs.washington.edu/courses/csep551/14au/video/)
+	- [CSEP 551 Operating Systems Autumn 2014 - University of Washington](https://courses.cs.washington.edu/courses/csep551/14au/video/)
 	- [Introduction to Operating Systems - IIT Madras](https://nptel.ac.in/courses/106106144/)
 	- [CS194 Advanced Operating Systems Structures and Implementation, Spring 2013 InfoCoBuild, UC Berkeley](http://www.infocobuild.com/education/audio-video-courses/computer-science/cs194-spring2013-berkeley.html)
 	- [CSE 60641 - Graduate Operating Systems, Fall 08](https://www.youtube.com/view_play_list?p=22B10D854588E20C)
@@ -148,8 +145,8 @@ Courses
 	- [CS 436 - Distributed Computer Systems - U Waterloo](https://www.youtube.com/playlist?list=PLawkBQ15NDEkDJ5IyLIJUTZ1rRM9YQq6N)
 	- [6.824 - Distributed Systems, Spring 2015 - MIT](https://www.youtube.com/playlist?list=PLkcQbKbegkMqiWf7nF8apfMRL4P4sw8UL)
 	- [Distributed Algorithms, https://canvas.instructure.com/courses/902299](https://www.youtube.com/playlist?list=PL700757A5D4B3F368)
-	- [CSEP 552 - PMP Distributed Systems, Spring 2013 - University of Washington](http://courses.cs.washington.edu/courses/csep552/13sp/) ([Videos](http://courses.cs.washington.edu/courses/csep552/13sp/video/))
+	- [CSEP 552 - PMP Distributed Systems, Spring 2013 - University of Washington](https://courses.cs.washington.edu/courses/csep552/13sp/) ([Videos](https://courses.cs.washington.edu/courses/csep552/13sp/video/))
-	- [CSE 490H - Scalable Systems: Design, Implementation and Use of Large Scale Clusters, Autumn 2008 - University of Washington](http://courses.cs.washington.edu/courses/cse490h/08au/lectures.htm) ([Videos](http://courses.cs.washington.edu/courses/cse490h/08au/video.htm))
+	- [CSE 490H - Scalable Systems: Design, Implementation and Use of Large Scale Clusters, Autumn 2008 - University of Washington](https://courses.cs.washington.edu/courses/cse490h/08au/lectures.htm) ([Videos](https://courses.cs.washington.edu/courses/cse490h/08au/video.htm))
 	- [MOOC - Cloud Computing Concepts - UIUC](https://www.youtube.com/playlist?list=PLFd87qVsaLhOkTLvfp6MC94iFa_1c9wrU)
 	- [Distributed Systems (Prof. Pallab Dasgupta)](https://www.youtube.com/playlist?list=PLUJ7JmcrTifBROWODSG8wgyl20XgBuE-N)
 	- [EdX KTHx ID2203 Reliable Distributed Algorithms](https://www.youtube.com/playlist?list=PLx3mQFFeHPjndmQ0iP9j6C58b90hqGa0X)
@@ -158,9 +155,7 @@ Courses
 - **Real-Time Systems**
 	- [CPCS 663 - Real-Time Systems: Video Material - TAMU](http://faculty.cs.tamu.edu/bettati/Courses/663/Video/presentation.html)
 	- [Real Time Systems - IIT Kharagpur](https://nptel.ac.in/courses/106105036/)
-	- [Real-Time Systems - SS 2013 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/5201/15648/)
 - [6.172 Performance Engineering of Software Systems - MIT OCW](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-172-performance-engineering-of-software-systems-fall-2010/)
-- [System Infrastructure For Data Science - WS 2012 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/4808/14532/)
 - [Performance Evaluation of Computer Systems - IIT Madras](https://nptel.ac.in/courses/106106048/)
 - [Storage Systems - IISC Bangalore](https://nptel.ac.in/courses/106108058/)
 - [MAP6264 - Queueing Theory - FAU](https://vimeo.com/album/171324/)
@@ -219,17 +214,14 @@ Courses
 	- [Informatics 2C - Software Engineering 2014/15- University of Edinburgh](http://groups.inf.ed.ac.uk/vision/VIDEO/2014/inf2SE.htm)
 - **Software Architecture**
 	- [CS 411 - Software Architecture Design - Bilkent University](http://video.bilkent.edu.tr/course_videos.php?courseid=10)
-	- [Model Driven Archtitecture - WS 2005 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/83/3022/)
-	- [Software Design, Modelling and Analysis in UML, WS 2012 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/5405/16022/)
 	- [MOOC - Software Architecture & Design - Udacity](https://www.youtube.com/playlist?list=PLAwxTw4SYaPkMTetlG7xKWaI5ZAZFX8fL)
 - **Concurrency**
 	- [CS176 - Multiprocessor Synchronization - Brown University](http://cs.brown.edu/courses/cs176/course_information.shtml) ([Videos from 2012](http://www.brown.edu/cis/sta/dev/herlihy_csci1760_fa12/#vid))
 	- [CS 282 (2014): Concurrent Java Network Programming in Android](https://www.youtube.com/playlist?list=PLZ9NgFYEMxp4KSJPUyaQCj7x--NQ6kvcX)
-	- [CSE P 506 – Concurrency, Spring 2011 - University of Washington](http://courses.cs.washington.edu/courses/csep506/11sp/Home.html) ([Videos](http://courses.cs.washington.edu/courses/csep506/11sp/Videos.html))
+	- [CSE P 506 – Concurrency, Spring 2011 - University of Washington](https://courses.cs.washington.edu/courses/csep506/11sp/Home.html) ([Videos](https://courses.cs.washington.edu/courses/csep506/11sp/Videos.html))
-	- [CSEP 524 - Parallel Computation - University of Washington](http://courses.cs.washington.edu/courses/csep524/10sp/) ([Videos](http://courses.cs.washington.edu/courses/csep524/10sp/lectures/video.html))
+	- [CSEP 524 - Parallel Computation - University of Washington](https://courses.cs.washington.edu/courses/csep524/10sp/) ([Videos](https://courses.cs.washington.edu/courses/csep524/10sp/lectures/video.html))
 	- [Parallel Programming Concepts (WT 2013/14) - HPI](https://itunes.apple.com/us/itunes-u/parallel-programming-concepts/id728270905)
 	- [Parallel Programming Concepts (WT 2012/13) - HPI](https://itunes.apple.com/us/itunes-u/parallel-programming-concepts/id597821383)
-	- [Concurrency Theory and Practice - WS 2010 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/3303/12101/)
 - **Mobile Application Development**
 	- [MOOC Programming Mobile Applications for Android Handheld Systems - University of Maryland](https://www.youtube.com/playlist?list=PLkHsKoi6eZnwilGXUc95CqS7Vw4uLLDLG)
 	- [CS 193p - Developing Applications for iOS, Stanford University](https://itunes.apple.com/us/course/developing-ios-9-apps-swift/id1104579961)
@@ -250,7 +242,7 @@ Courses
 - [CS 188 - Introduction to Artificial Intelligence, UC Berkeley - Spring 2015](http://www.infocobuild.com/education/audio-video-courses/computer-science/cs188-spring2015-berkeley.html)
 - [6.034 Artificial Intelligence, MIT OCW](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-034-artificial-intelligence-fall-2010/lecture-videos/)
 - [15-780 - Graduate Artificial Intelligence, Spring 14, CMU](http://www.cs.cmu.edu/~zkolter/course/15-780-s14/lectures.html)
-- [CSE 592 Applications of Artificial Intelligence, Winter 2003 - University of Washington](http://courses.cs.washington.edu/courses/csep573/03wi/lectures/index.htm)
+- [CSE 592 Applications of Artificial Intelligence, Winter 2003 - University of Washington](https://courses.cs.washington.edu/courses/csep573/03wi/lectures/index.htm)
 - [CS322 - Introduction to Artificial Intelligence, Winter 2012-13 - UBC](http://www.cs.ubc.ca/~mack/CS322/) ([YouTube](https://www.youtube.com/playlist?list=PLDPnGbm0sUmpzvcGvktbz446SLdFbfZVU))
 - [CS 4804: Introduction to Artificial Intelligence, Fall 2016](https://www.youtube.com/playlist?list=PLUenpfvlyoa1iiSbGy9BBewgiXjzxVgBd)
 - [CS 5804: Introduction to Artificial Intelligence, Spring 2015](https://www.youtube.com/playlist?list=PLUenpfvlyoa0PB6_kqJ9WU7m6i6z1RhfJ)
@@ -261,7 +253,6 @@ Courses
 - [MOOC - Intro to Artificial Intelligence - Udacity](https://www.youtube.com/playlist?list=PLAwxTw4SYaPlqMkzr4xyuD6cXTIgPuzgn)
 - [MOOC - Artificial Intelligence for Robotics - Udacity](https://www.youtube.com/playlist?list=PLAwxTw4SYaPkCSYXw6-a_aAoXVKLDwnHK)
 - [Graduate Course in Artificial Intelligence, Autumn 2012 - University of Washington](https://www.youtube.com/playlist?list=PLbQ3Aya0VERDoDdbMogU9EASJGWris9qG)
-- [Advanced AI Techniques - WS 2005 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/1/349/) ([WS 2004](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/2/335/))
 - [Agent-Based Systems 2015/16- University of Edinburgh](http://groups.inf.ed.ac.uk/vision/VIDEO/2015/abs.htm)
 - [Informatics 2D - Reasoning and Agents 2014/15- University of Edinburgh](http://groups.inf.ed.ac.uk/vision/VIDEO/2014/inf2d.htm)
 - [Artificial Intelligence - Hochschule Ravensburg-Weingarten](https://www.youtube.com/playlist?list=PL39B5D3AFC249556A)
@@ -297,7 +288,6 @@ Courses
 	- [Information Theory, Pattern Recognition, and Neural Networks - University of Cambridge](https://www.youtube.com/playlist?list=PLruBu5BI5n4aFpG32iMbdWoRVAA-Vcso6)
 	- [Python and machine learning - Stanford Crowd Course Initiative](https://www.youtube.com/playlist?list=PLVxFQjPUB2cnYGZPAGG52OQc9SpWVKjjB)
 	- [MOOC - Machine Learning Part 1a - Udacity/Georgia Tech](https://www.youtube.com/playlist?list=PLAwxTw4SYaPl0N6-e1GvyLp5-MUMUjOKo) ([Part 1b](https://www.youtube.com/playlist?list=PLAwxTw4SYaPlkESDcHD-0oqVx5sAIgz7O) [Part 2](https://www.youtube.com/playlist?list=PLAwxTw4SYaPmaHhu-Lz3mhLSj-YH-JnG7) [Part 3](https://www.youtube.com/playlist?list=PLAwxTw4SYaPnidDwo9e2c7ixIsu_pdSNp))
-	- [Machine Learning and Data Mining - WS 2004 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/75/3164/)
 	- [Machine Learning and Pattern Recognition 2015/16- University of Edinburgh](http://groups.inf.ed.ac.uk/vision/VIDEO/2015/mlpr.htm)
 	- [Introductory Applied Machine Learning 2015/16- University of Edinburgh](http://groups.inf.ed.ac.uk/vision/VIDEO/2015/iaml.htm)
 	- [Pattern Recognition Class (2012)- Universität Heidelberg](https://www.youtube.com/playlist?list=PLuRaSnb3n4kRDZVU6wxPzGdx1CN12fn0w)
@@ -406,20 +396,13 @@ Courses
 ### Computer Networks
 - [14-740 - Fundamentals of Computer Networks, Fall 2017 - CMU](http://www.ini740.com/F18/index.html#videos)
 - [CS 144 Introduction to Computer Networking - Stanford University, Fall 2013](http://www.scs.stanford.edu/10au-cs144/) ([Lecture videos](https://www.youtube.com/playlist?list=PLvFG2xYBrYAQCyz4Wx3NPoYJOFjvU7g2Z))
-- [Computer Communication Networks, Rensselaer Polytechnic Institute - Fall 2001](http://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html) ([Videos](http://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html#ccn_video)) ([Slides](http://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html#ccn_foils))
+- [Computer Communication Networks, Rensselaer Polytechnic Institute - Fall 2001](https://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html) ([Videos](https://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html#ccn_video)) ([Slides](https://www.ecse.rpi.edu/Homepages/koushik/shivkuma-teaching/video_index.html#ccn_foils))
 - [Audio/Video Recordings and Podcasts of Professor Raj Jain's Lectures - Washington University in St. Louis](http://www.cse.wustl.edu/~jain/videos.htm) ([YouTube](https://www.youtube.com/user/ProfRajJain/playlists))
 - [Computer Networks, Tanenbaum, Wetherall Computer Networks 5e - Video Lectures](http://media.pearsoncmg.com/ph/streaming/esm/tanenbaum5e_videonotes/tanenbaum_videoNotes.html)
-- [CSEP 561 - PMP Network Systems, Fall 2013 - University of Washington](http://courses.cs.washington.edu/courses/csep561/13au/) ([Videos](http://courses.cs.washington.edu/courses/csep561/13au/video/))
+- [CSEP 561 - PMP Network Systems, Fall 2013 - University of Washington](https://courses.cs.washington.edu/courses/csep561/13au/) ([Videos](https://courses.cs.washington.edu/courses/csep561/13au/video/))
-- [CSEP 561 – Network Systems, Autumn 2008 - University of Washington](http://courses.cs.washington.edu/courses/csep561/08au/) ([Videos](http://courses.cs.washington.edu/courses/csep561/08au/lectures/))
+- [CSEP 561 – Network Systems, Autumn 2008 - University of Washington](https://courses.cs.washington.edu/courses/csep561/08au/) ([Videos](https://courses.cs.washington.edu/courses/csep561/08au/lectures/))
 - [Computer Networks - IIT Kharagpur](https://nptel.ac.in/courses/106105081/)
 - [Introduction to Data Communications 2013, Steven Gordon - Thammasat University, Thailand](https://www.youtube.com/playlist?list=PLvifRcqOOwF8u4iC7hFTMVC_WD6SEpnkx)
-- [Communication Systems - SS 2008 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/16/2825/)
-- [Communication Systems (Telecommunication from ISDN/GSM to VoIP) - WS 2010 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/3003/10016/)
-- [Internetworking - SS 2005 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/73/2764/)
-- [Mobile Computing - WS 2004 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/82/2991/)
-- [Network Algorithms - SS 2013	- Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/5103/15465/)
-- [Telecommunication Systems - SS 2012 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/4509/13493/)
-- [Wireless Sensor Networks - WS 2006 (English) - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/112/4172/)
 - [Introduction to Complex Networks - RIT](https://www.youtube.com/playlist?list=PLE9AAD550EA21F3DC)
 - [Structural Analysis and Visualization of Networks](http://www.leonidzhukov.net/hse/2015/networks/)
 - [Data Communication - IIT Kharagpur](https://nptel.ac.in/courses/106105082/)
@@ -483,14 +466,12 @@ Courses
 - [Internet Technology - IIT Kharagpur](https://nptel.ac.in/courses/106105084/)
 - [Introduction to Modern Application Development - IIT Madras](https://nptel.ac.in/courses/106106156/)
 - [CSE 199 - How the Internet Works, Fall 2016 - University of Buffalo](https://www.youtube.com/playlist?list=PLk97mPCd8nvbxGGfkYkBXrSEvpTc1xTF8)
-- [Web Search - SS 2006 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/110/423/)
 - [Open Sourced Elective: Database and Rails - Intro to Ruby on Rails, University of Texas](http://www.schneems.com/ut-rails/) ([Lectures - Youtube](https://www.youtube.com/playlist?list=PL7A85FD7803A8CB1F))
-- [CSEP545 - Transaction Processing for E-Commerce, Winter 2012 - University of Washington](http://courses.cs.washington.edu/courses/csep545/12wi/) ([Videos](http://courses.cs.washington.edu/courses/csep545/12wi/video/))
+- [CSEP545 - Transaction Processing for E-Commerce, Winter 2012 - University of Washington](https://courses.cs.washington.edu/courses/csep545/12wi/) ([Videos](https://courses.cs.washington.edu/courses/csep545/12wi/video/))
 - [CT 310 Web Development - Colorado State University](https://www.cs.colostate.edu/~ct310/yr2016sp/home_progress.php)
 - [Internet Technologies and Applications 2012, Steven Gordon - Thammasat University, Thailand](https://www.youtube.com/playlist?list=PLvifRcqOOwF9cfLMTE-42fiBsWvBsOEkS)
 - [CSCI 3110 Advanced Topics in Web Development, Fall 2011 - ETSU iTunes](https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=454017618)
 - [CSCI 5710 e-Commerce Implementation, Fall 2015 - ETSU iTunes](https://itunes.apple.com/us/itunes-u/e-commerce-implementation/id1020427670)
-- [XML and Semantic Web-Technologies - SS 2005 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/114/4215/)
 - [MOOC - Web Development - Udacity](https://www.youtube.com/playlist?list=PLAwxTw4SYaPlLXUhUNt1wINWrrH9axjcI)
 
 ---------------------------
@@ -502,11 +483,11 @@ Courses
 - [MOOC - Compilers - Stanford University](https://archive.org/details/academictorrents_e31e54905c7b2669c81fe164de2859be4697013a)
 - [CS 164 Hack your language, UC Berkeley](https://sites.google.com/a/bodik.org/cs164/home) ([Lectures - Youtube](https://www.youtube.com/playlist?list=PL3A16CFC42CA6EF4F))
 - [CS 173 Programming Languages, Brown University](http://cs.brown.edu/courses/cs173/2012/Videos/) ([Book](http://cs.brown.edu/courses/cs173/2012/book/))
-- [CS 421 - Programming Languages and Compilers, UIUC](https://courses.engr.illinois.edu/cs421/fa2014/) ([Videos](http://recordings.engineering.illinois.edu/ess/portal/section/631edaeb-2a33-4537-b7c8-0c1cba783a4f))
+- [CS 421 - Programming Languages and Compilers, UIUC](https://courses.engr.illinois.edu/cs421/fa2014/)
 - [CSC 253 - CPython internals: A ten-hour codewalk through the Python interpreter source code, University of Rochester](http://pgbovine.net/cpython-internals.htm)
 - [CSE341 - Programming Languages, Dan Grossman, Spring 2013 - University of Washington](https://courses.cs.washington.edu/courses/cse341/13sp/)
-- [CSEP 501 - Compiler Construction, University of Washington](http://courses.cs.washington.edu/courses/csep501/09au/lectures/video.html) ([Lectures - Youtube](https://www.youtube.com/playlist?list=PLTPQEx-31JXhfAWGnGzwbfhB2zUB7Jd4C))
+- [CSEP 501 - Compiler Construction, University of Washington](https://courses.cs.washington.edu/courses/csep501/09au/lectures/video.html) ([Lectures - Youtube](https://www.youtube.com/playlist?list=PLTPQEx-31JXhfAWGnGzwbfhB2zUB7Jd4C))
-- [CSEP 505 Programming Languages, Winter 2015 - University of Washington](http://courses.cs.washington.edu/courses/csep505/15wi/video/)
+- [CSEP 505 Programming Languages, Winter 2015 - University of Washington](https://courses.cs.washington.edu/courses/csep505/15wi/video/)
 - [DMFP - Discrete Mathematics and Functional Programming, Wheaton College](http://cs.wheaton.edu/~tvandrun/dmfp/)
 - [CS 374 - Algorithms & Models of Computation (Fall 2014), UIUC](https://courses.engr.illinois.edu/cs498374/fa2014/lectures.html) ([Lecture videos](http://recordings.engineering.illinois.edu/ess/portal/section/115f3def-7371-4e98-b72f-6efe53771b2a))
 - [6.045 Automata, Computability, and Complexity, MIT](https://stellar.mit.edu/S/course/6/sp15/6.045/materials.html) ([Lecture Videos](http://stellar.mit.edu/S/course/6/sp15/6.045/special/videos/index.html))
@@ -587,7 +568,7 @@ Courses
 - **Computer Architecture**
 	- [18-447 - Introduction to Computer Architecture, CMU](http://www.ece.cmu.edu/~ece447/s14/doku.php?id=schedule) ([Lectures - YouTube - Fall 15](https://www.youtube.com/playlist?list=PL5PHm2jkkXmgVhh8CHAu9N76TShJqfYDt))
 	- [CS 152 Computer Architecture and Engineering, UC Berkeley](https://www.youtube.com/playlist?list=PLkFD6_40KJIwEiwQx1dACXwh-2Fuo32qr)
-	- [CSEP 548 - Computer Architecture Autumn 2012 - University of Washington](http://courses.cs.washington.edu/courses/csep548/12au/video/index.html)
+	- [CSEP 548 - Computer Architecture Autumn 2012 - University of Washington](https://courses.cs.washington.edu/courses/csep548/12au/video/index.html)
 	- [CS/ECE 6810 Computer Architecture, Spring 2016, University of Utah](http://www.cs.utah.edu/~rajeev/cs6810/) ([YouTube](https://www.youtube.com/playlist?list=PL8EC1756A7B1764F6))
 	- [MOOC - Computer Architecture, David Wentzlaff - Princeton University/Coursera](http://academictorrents.com/details/53bae6d22f3b6e692673f9335e0a0198c1618426)
 	- [Computer Architecture - ETH Zürich - Fall 2017](https://www.youtube.com/playlist?list=PL5Q2soXY2Zi9OhoVQBXYFIZywZXCPl4M_)
@@ -620,7 +601,7 @@ Courses
 
 ### Security
 - [6.858 Computer Systems Security - MIT OCW](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-858-computer-systems-security-fall-2014/video-lectures/)
-- [CSEP590A - Practical Aspects of Modern Cryptography, Winter 2011 - University of Washington](http://courses.cs.washington.edu/courses/csep590a/11wi/) ([Videos](http://courses.cs.washington.edu/courses/csep590a/11wi/video/))
+- [CSEP590A - Practical Aspects of Modern Cryptography, Winter 2011 - University of Washington](https://courses.cs.washington.edu/courses/csep590a/11wi/) ([Videos](https://courses.cs.washington.edu/courses/csep590a/11wi/video/))
 - [CS461/ECE422 - Computer Security - University of Illinois at Urbana-Champaign](https://courses.engr.illinois.edu/cs461/sp2016/) ([Videos](https://recordings.engineering.illinois.edu:8443/ess/portal/section/8a560718-345a-417a-b665-6bd375a71ee2))
 - [Introduction to Cryptography, Christof Paar - Ruhr University Bochum, Germany](https://www.youtube.com/playlist?list=PLwJWuZfL_Ga2KJrTf9hOIgAQWkSpn9RNm)
 - [ECS235B Foundations of Computer and Information Security - UC Davis](https://itunes.apple.com/us/itunes-u/computer-science-foundations/id389259109)
@@ -633,7 +614,6 @@ Courses
 - [Internet Security - Weaknesses and Targets (WT 2015/16)](https://www.tele-task.de/archive/series/overview/1084/) ([WT 2012/13](https://www.tele-task.de/archive/series/overview/921/) ([YouTube](https://www.youtube.com/playlist?list=PLVWVhkyKd-7taP50fB9PeZ2W_EPTOLD8o)))
 - [IT Security, Steven Gordon - Thammasat University, Thailand](https://www.youtube.com/playlist?list=PLvifRcqOOwF9-XSGfm-3uA9DfF7plasCF)
 - [Security and Cryptography, Steven Gordon - Thammasat University, Thailand](https://www.youtube.com/playlist?list=PLvifRcqOOwF-z2sfMb3w0uQzd7PfaLFlU)
-- [Web Security - SS 2008 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/111/4163/)
 - [MOOC - Cryptography - Coursera](https://www.youtube.com/playlist?list=PL3F2F89F4CD1E1DF4)
 - [MOOC - Intro to Information Security - Udacity](https://www.youtube.com/playlist?list=PLAwxTw4SYaPkG-z00NybuIyDqT4sRh3ak)
 - [ICS 444 - Computer & Network Security](https://www.youtube.com/playlist?list=PLciCszvvRCTV09wIXJwiPmYF7thHiq4En)
@@ -696,7 +676,6 @@ Courses
 - [MOOC - Bioinformatics Algorithms: An Active Learning Approach - UC San Diego/Coursera](http://bioinformaticsalgorithms.com/videos.htm)
 - [Neural Networks and Biological Modeling - Lecturer: Prof. Wulfram Gerstner - EPFL](http://www.klewel.com/conferences/epfl-neural-networks/)
 - [Video Lectures of Wulfram Gerstner: Computational Neuroscience - EPFL](http://lcn.epfl.ch/~gerstner/VideoLecturesGerstner.html)
-- [Bioinformatic II - WS 2010 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/3013/10069/)
 - [An Introduction To Systems Biology](http://www.weizmann.ac.il/mcb/UriAlon/introduction-systems-biology-design-principles-biological-circuits)
 - [Introduction to Bioinformatics, METUOpenCourseWare](https://www.youtube.com/playlist?list=PLuiPz6iU5SQ-PAjlyz4b3EIIQ6dpZ2DE_)
 - [MOOC - Algorithms for DNA Sequencing, Coursera](https://www.youtube.com/playlist?list=PL2mpR0RYFQsBiCWVJSvVAO3OJ2t7DzoHA)
@@ -721,8 +700,6 @@ Courses
 - [METR 4202/7202 -- Robotics & Automation - University of Queensland](http://robotics.itee.uq.edu.au/~metr4202/lectures.html)
 - [Robotics - IIT Bombay](https://nptel.ac.in/courses/112101099/)
 - [Introduction to Machine Vision](https://www.youtube.com/playlist?list=PL1pxneANaikCO1-Z0XTaljLR3SE8tgRXY)
-- [Introduction to Mobile Robotics - SS 2017 - University of Freiburg](http://ais.informatik.uni-freiburg.de/teaching/ss17/robotics/)
-- [Robot Mapping - WS 2015/16 - Universität Freiburg](http://ais.informatik.uni-freiburg.de/teaching/ws15/mapping/)
 - [6.834J Cognitive Robotics - MIT OCW ](https://ocw.mit.edu/courses/aeronautics-and-astronautics/16-412j-cognitive-robotics-spring-2016/)
 
 
@@ -741,7 +718,7 @@ Courses
 	- [18.S096 Topics in Mathematics with Applications in Finance, MIT OCW](https://ocw.mit.edu/courses/mathematics/18-s096-topics-in-mathematics-with-applications-in-finance-fall-2013/video-lectures/)
 - **HCI**
 	- [CS147 - Introduction to Human-Computer Interaction Design - Stanford](http://hci.stanford.edu/courses/cs147/2015/au/calendar.php)
-	- [CSEP 510 - Human Computer Interaction](http://courses.cs.washington.edu/courses/csep510/04wi/)
+	- [CSEP 510 - Human Computer Interaction](https://courses.cs.washington.edu/courses/csep510/04wi/)
 	- [Programming for Designers - COMP1400-T2 (2010) - UNSW](https://www.youtube.com/playlist?list=PL9444191613E018CC)
 	- [08-763 Intro to HCI for Technology Executives - Fall 2015 - CMU](https://scs.hosted.panopto.com/Panopto/Pages/Sessions/List.aspx#folderID=%228bb9f417-9f60-4e00-84f6-4ef8e7425ae1%22&maxResults=150)
 	- [05-600 HCI Pro Seminar - Fall 2015 - CMU](https://scs.hosted.panopto.com/Panopto/Pages/Sessions/List.aspx#folderID=%22d885fd87-1ba1-47a3-9bd2-c4bde55f9749%22&maxResults=150)
@@ -757,7 +734,6 @@ Courses
 - [CS E-259 XML with Java, Java Servlet, and JSP - Harvard](http://cs259.tv/2007/fall/)
 - [CSE 40373 - Spr 2009: Multimedia Systems](https://www.youtube.com/view_play_list?p=0105F1427EFAEE0A)
 - [Exposing Digital Photography - Harvard Extension School](http://tv.digitalphotography.exposed/2010/fall/)
-- [XML and Databases - WS 2011 - Universität Freiburg](https://electures.informatik.uni-freiburg.de/portal/web/guest/detail/-/modulnavigation/view/4006/12519/)
 - [MOOC - Matlab - Coursera](https://www.youtube.com/playlist?list=PLcKDPPOF93EvvBrgR852MU13zvS2ihTpR)
 - [Computing for Computer Scientists - University of Michigan](https://c4cs.github.io)
 - [Linux Implementation/Administration Practicum - Redhat by Tulio Llosa](https://itunes.apple.com/us/itunes-u/linux-implementation-administration/id430673915)