TED Talks

I really enjoy watching the TED talks. Most of the time. When the speakers talk about making the world a better place, those are the best.
A Powerful idea about teaching Ideas
Once upon a school

Sometimes they talk about what they are passionate about, and those can be pretty good
Debunking third-world myths with the best stats you've ever seen
The joy of rockets

Sometimes their passion gets self-serving, and the talks start getting too corporate and too creepy.
WorldWide Telescope
On the verge of creating synthetic life