Free Computer Science Classes from Stanford

For the first time in its history, Stanford is offering some of its most popular engineering classes free of charge to students and educators around the world. Stanford Engineering Everywhere (SEE) expands the Stanford experience to students and educators online. A computer and an Internet connection are all you need. View lecture videos, access reading lists and other course handouts, take quizzes and tests, and communicate with other SEE students, all at your convenience.

SEE programming includes one of Stanford’s most popular sequences: the three-course Introduction to Computer Science taken by the majority of Stanford’s undergraduates and seven more advanced courses in artificial intelligence and electrical engineering.

Also, if you didn't know MIT opened up over 1800 of their courses through a program called OpenCourseWare

Link:
http://see.stanford.edu/