I know everybody's seen the google satellite maps. Not sure if you've all seen this, though. Pretty cool. It's just a big collection of interesting spots found on google maps.
Remember the Simpson's episode where Bart made a fake ID, rented a car, and then drove to Knoxville to see the 1982 World's Fair? Well here's the crown jewel of that fair, the Wig Sphere (formerly the Sunsphere)
yeah terraserver has been around for ages but it's a lot slower and the navigation is a pain compared to google. this free satelite image stuff is nowhere near new, but it hasn't been this easy and fast before so that's why I think everybody is all over it now.