http://www.wechoosethemoon.org/
Still 71 hours before they arrive at the moon, in the meantime you can follow their radiochatter live.
That's totally awesome. I love the little thing in the bottom right that gives you some historical context, like the price of eggs or The Godfather and Slaughterhouse-five being on the New York Times bestseller list.
I've been following it since the launch two days ago.