I also found Openculture: http://www.openculture.com/freeonlinecoursesUnlocking Knowledge, Empowering Minds.
Free lecture notes, exams, and videos from MIT. No registration required.
MIT OpenCourseWare (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.
What is MIT OpenCourseWare?
MIT OpenCourseWare is a free publication of MIT course materials that reflects almost all the undergraduate and graduate subjects taught at MIT.
•OCW is not an MIT education.
•OCW does not grant degrees or certificates.
•OCW does not provide access to MIT faculty.
•Materials may not reflect entire content of the course.
How do I register to use MIT OpenCourseWare?
There is no registration or enrollment process because OCW is not a credit-bearing or degree-granting initiative.
Can I get a certificate?
No. MIT OpenCourseWare is a publication of the course materials that support the dynamic classroom interactions of an MIT education; it is not a degree-granting or credit-bearing initiative. However, you should work through the materials at your own pace, and in whatever manner you desire.
Openculture also have links to free language courses: http://www.openculture.com/freelanguagelessonsGet free online courses from the world’s leading universities. This collection includes over 250 free courses in the liberal arts and sciences. Download these audio & video courses straight to your computer or mp3 player.
Anyone else have any good links for free online courses?