Well, now you have no excuse not to learn something new every day. "OCW is a free publication of course materials used at MIT". "OCW shares free lecture notes, exams, and other resources from more than 1700 courses spanning MIT's entire curriculum."
Readers of my blog might enjoy: Media Arts and Sciences, Comparative Media Studies, and the History offerings. There is also a Music and Theatre Arts section.
I plan to spend a lot of time looking through this site in the next few weeks.
Let me know what you find, too!