Learn 50 Languages for FREE

The 50Languages.com website offers 100 free short lessons in 50 different languages. Choose your mother tongue, an then choose which languages you would like to learn, and gain access to free 100 dual language mp3 files to download or listen to online.

Best Free Online Classes

This is a list of websites offering free online classes and resources for education and free tutoring:

From Universities

• edX: Online courses from top universities.
• Udacity: a collection of university-level free online courses in Computer Science in Engineering from Stanford professors.
• Coursera: a collection of free university-level online interactive classes from Stanford professors in various subjects including Computer Science, Electrical Engineering, ... etc.
• MIT Open Courseware: freely available course materials from MIT. 
• Lagunita: a collection of online courses from Stanford.
• Stanford Engineering Everywhere: a collection of free engineering courses from Stanford.
• Open Yale Courses: freely available video/audio courses from Yale.

Free Online Design and Analysis of Algorithms Course

Coursera is offering a free online Design and Analysis of Algorithms I class taught by Stanford University professor Tim Roughgarden. The class will start on March 12, 2012 and already has a couple of lectures on its website.

Details

Free Online Natural Language Processing Course

Coursera is offering a free online Natural Language Processing (NLP) class taught by Stanford University professors Dan Jurafsky and Christopher Manning. The class will start on March 12, 2012 and already has a couple of lectures on its website.

NLP Class. Source.

Details

Open Yale Courses

Yale University is offering a number of freely available online courses though its Open Yale Courses initiative. The courses cover topics such as Biology, Chemistry, Physics, Political Science, Sociology, and Economics. A list of the courses is available here and they are also available on YouTube.

Open Yale Courses. Source.

Details . Arabic Version

CMU's Open Learning Initiative

Carnegie Melon University is offering a number of free courses in its Open Learning Initiative. The courses include Biology, Statistics, Chemistry, and French.

Details . Courses

MITx: MIT's Online Learning Initiative

MIT is offering this semester its brand new open learning initiative: MITx. It's basically a course that's taught entirely online, together with quizzes, exames, discussions, and even a certification of completion at the end. In addition, MIT plans to make the software platform freely available for other higher education institutions to offer similar classes.

The program will start with the electronics class 6.002x, and will be taught by Prof. Anant Agrawal together with Gerald Sussman and Piotr Mitros.

Details . Arabic Version

Free Online Courses from Top Universities

A lot of top universities in the world are now offering completely free high quality audio and/or video courses. Here is just a sample:

• MITx: MIT's online learning initiative. 
• MIT Open Courseware: freely available course materials from MIT. 
• Open Yale Courses: freely available video/audio courses from Yale.
• Berkeley Webcast: freely available video/audio recordings of courses from University of California Berkeley.
• Notre Dame Open Courseware: open courseware from the University of Notre Dame.
• Stanford Engineering Everywhere: a collection of free engineering courses from Stanford.
• UCLA Webcast: freely available video/audio courses from the University of California Los Angeles.
• Harvard Open Learning Initiative: freely available video/audio courses from Harvard.
• UCSD Podcast: freely available courses from the University of California San Diego.
• Oxford Podcast: freely available video/audio lectures from Oxford.
• Khan Academy: a website with over 3000 short videos (and counting) about everything from Math to Physics to History to Economics and Finance.
• Udacity: a collection of university-level free online courses in Computer Science in Engineering from Stanford professors.
• Coursera: a collection of free university-level online interactive classes from Stanford professors in various subjects including Computer Science, Electrical Engineering, ... etc.