Additional Free Online Courses
Coursera partners with 33 top universities in the world to offer courses online for anyone to take, for free.
Free courses for high school and college students, many for college credit.
Founded by Harvard University and the Massachusetts Institute of Technology, edX features learning designed specifically for interactive study via the web.
Khan Academy offers a library of over 3,000 videos covering everything from arithmetic to physics, finance, and history, as well as hundreds of other skills.
MIT OCW is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity.
Founded by a Stanford computer science professor, Udacity focuses on computer science and related fields.