Speaking of Carl Sagan, if you haven't yet seen the popular Youtube video, "A Glorious Dawn"
http://www.youtube.com/watch?v=zSgiXGELjbc

It's in the running for a Webby Award. If you like it and want to cast your vote in the People’s Choice Awards, just go here:

http://www.youtube.com/webby

Click on the image near the bottom that says Video Remixes and Mashups. At the next page, scroll down till you see A Glorious Dawn. (You can view the video again there.) Then hit the register button (that way they know the same people don’t vote twice) They’ll email you an authorization code and a link back. Then you can cast your vote.