Free online learning resources

education.10gen.com - online learning platform run by 10gen (the MongoDB company) available to anyone in the world with an internet connection. Our free courses will teach you how to develop for and administer MongoDB quickly and efficiently.

http://www.udacity.com/ - digital university on a mission to democratize education. Udacity courses include lecture videos, quizzes and homework assignments. There are 18 courses currently opened. 

http://code.google.com/edu/ - sample course content and tutorials for Computer Science (CS) students and educators on current computing technologies and paradigms.

http://docs.webplatform.org - is a new community-driven site that aims to become a comprehensive and authoritative source for web developer documentation. 

https://developer.mozilla.org/en-US/learn - HTML, CSS, Java Script learning materials. 
http://www.html5rocks.com/ - Articles, tutorials, case studies, and demos that show you how to use HTML5 features.

http://thecodeplayer.com/ - Learn HTML5, CSS3, Javascript and more... Video style walkthroughs showing cool stuff being created from scratch

https://www.coursera.org/ - offers courses in a wide range of topics, spanning the Humanities, Medicine, Biology, Social Sciences, Mathematics, Business, Computer Science, and many others.

http://ocw.mit.edu/courses/electrical-engineering-and-computer-science/ - Electrical Engineering and Computer Science

http://www.codecademy.com - Codecademy is the easiest way to learn to code. It's interactive, fun, and you can do it with your friends.

http://www.khanacademy.org - The Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.

https://peepcode.com/ - Get the newest and hottest development resources from PeepCode first, well before they’re covered in books. Vet new approaches: our one-hour screencasts give you a deep but concise overview of tools.

http://eloquentjavascript.net/ - Eloquent JavaScript A Modern Introduction to Programming by Marijn Haverbeke

http://rubykoans.com/ - learn the Ruby language, syntax, structure, and some common functions and libraries. We also teach you culture. Testing is not just something we pay lip service to, but something we live. It is essential in your quest to learn and do great things in the language.

http://learncodethehardway.org/ - Downloaded more than 500 thousand times, Learn Python The Hard Way is proving to be an effective and fun book for learning to code. If you've always wanted to learn programming but failed in the past, then this is your next book.

http://www.oreillyschool.com/courses/ - IT Career Training Begins with Self-Paced Distance Learning Courses. Whether you take them individually or with Certificate of Professional Development in mind, completing each of our online distance learning courses will earn you Continuing Education Units, and will count toward any Online Certificate Programs that include that course.

http://teamtreehouse.com/ - Treehouse is the best way to learn how to design and develop for the web and iOS.

http://www.udemy.com/ - Web Development, Entrepreneurship, Yoga, Photography

http://developer.android.com/index.html - android development resources

http://www.codeschool.com/ -

http://www.bloc.io/ -

https://developer.apple.com/ -

https://www.ai-class.com/ -

http://gotoandlearn.com/ -

http://venture-lab.org/ -

https://www.edx.org/courses/HarvardX/CS50x/2012/about/ -

A lot of link found on http://thenextweb.com