I really like this new site BigThink, which features specially filmed videos in a documentary, talking head style based around themes such as Faith & Beliefs, Love & Happiness, Science & Technology, and so on. You are then encouraged to post your own video response, YT style.
The seed videos are crisp, clean and concise. I liked:
Richard Branson on the power of bold statements.
Moby on why be a vegan.
Walt Mossberg on on being in this age of technological change.
Philippe Cayla (Chmn & CEO of EuroNews) on whether the media is responsible for the war in Iraq.
Good stuff.