Open Culture

http://www.openculture.com/2007/07/freeonlinecourses.html
http://www.openculture.com/2006/10/audio_book_podc.html

Free online courses from great universities and free audio books from classic and contemporary writers.

Art Forum Video

http://www.artforum.com/video

Featured are Fischli and Weiss' magnificant 'Der Lauf Der Dinge', a BBC J.G. Ballard production and a Jhon cage performance. Many more inside.

Free Music Archive

http://freemusicarchive.org/

Colorado College: Notable Lectures

http://www.coloradocollege.edu/podcast/
http://www.coloradocollege.edu/podcast/CClectures.xml (podcast URL)

Subjects covered range from Buddhism to Abraham Lincoln. Omnivorism to Iraq.

Art Babble

http://www.artbabble.org/

ArtBabble is a new kind of video site dedicated to art and artists. It offers high definition video that features content ranging from contemporary to clasical.