For all you astronomy buffs out there - check this cool new site out. It is using data from LRO (Lunar Reconnaissance Orbiter) - a NASA probe, partially designed by my brother, wink to create a map of the lunar surface. It appears to be on the same idea as galazyzoo, where you look at photos and mark craters and interesting features.
I admit, I have not played with it much yet, but it looks cool.