Two recent discoveries from a single blog:
An artist named Aaron Koblin used a single day of flight data from the FAA to generate this great moving graphic (click on "The U.S. as seen by the FAA"). The best part starts about half-way through.
Also, these TEDTalks podcasts look great. TED is a conference I don't know much about, but it draws a wide variety of speakers, including Al Gore, Ray Kurzweil, Malcom Gladwell, Richard Dawkins, and several poets and musicians.