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.
• CMU Open Learning Initiative: a collection of courses from CMU.
• 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.
• 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.

From Others

• Connexions: a collection of free educational materials organized in small chunks (modules) and collected into courses.
• Open Course Library: a library of free open source courses in various subjects.
• Open Culture: a comprehensive list of free online video/audio courses and free online textbooks in various subjects.
• Utubersity: a collection of free online video lectures, documentaries, and conferences.
• Do It Yourself Scholar: a blog about free educational resources.
• Flat World Knowledge: a publishing house that makes freely available a collection of high quality college-level textbooks in different subjects from Physics to Economics