Video lectures

Khan Academy:
http://www.khanacademy.org/ - lectures on different subjects for a variety of learners.
Ted Talks:
http://www.ted.com/talks 
Edge:
http://www.edge.org/

Stanford University lectures:
http://www.youtube.com/user/StanfordUniversity/videos?view=0 
videolectures.net
http://videolectures.net/ 
Harvard University
http://freevideolectures.com/University/Harvard 
University of California
http://www.uctv.tv/ 

Sugar: the bitter truth. 


a good one found by Katrin:
http://www.youtube.com/watch?v=bsVH3n7zm5g  - about free academic lectures, and the sites mentioned there:
http://www.academicearth.org/ 
http://www.wgbh.org/programs/Forum-Network-1694? 
http://www.openculture.com/ 



Beginnings:
http://videolectures.net/aaai2012_tenenbaum_grow_mind/
http://www.youtube.com/watch?v=xdv30uRWErE&feature=relmfu 
http://video.google.com/videoplay?docid=-2333306016564732003 (course procedures explained)
with an intro: http://www.uctv.tv/shows/Freedom-from-Oil-Dependence-with-Yossie-Hollander-Conversations-with-History-24148