I am sure (at least some of) you are familiar with TED:

TED (Technology Entertainment Design) … is a forum for revolutionary ideas held annually in Monterey, California and recently, semi-annually in other cities around the world. TED has lived up to its description as a “group of remarkable people that gather to exchange ideas of incalculable value”. Its groundbreaking 20 minute lectures cover an extremely broad set of topics including science, arts, politics, global issues, architecture, music and more.

But I particularly bring it up at this time cause I just came across the TEDConferences google-video user, who has posted lots of really good presentations; for e.g. check out this really interesting talk by physicist David Deutsch on species survival, or this very well done presentation with amazing graphics by professor of international health Hans Rosling titled myths about the developing world, or this extremely entertaining and profoundly moving talk by Sir Ken Robinson about creativity and the education system, as well as presentations by Gladwell, Negroponte, Dawkins, Al Gore, and many others.

If you’re not a streaming-video kind of gal, turns out you can also download the talks (mp3/mp4) from the TED website (there’s an option to watch/listen online on that link as well). Or even better, you can subscribe to the audio or video (sorta weekly) podcasts. If anyone’s watching, let me know if there are particular ones that you (dis)like.