I just downloaded and played with Google Earth for the first time (yeah I know, welcome to 2003) and it's fantastic! You can zoom in ANYWHERE IN THE WORLD down to where you can see branches on trees and what color cars on the roads are. And the best part is that there are little icons scattered around the world wherever someone has taken a photo and uploaded it to Flickr or Panoramio, which you can then click and see the picture. I just spent some time in Glacier National Park in Montana looking at hundreds of terrific tourist's photos, and then I warped to the Midway Islands and saw an airport which has been abandoned since World War II. On a more practical level, I also looked around a state park in North Jersey that I want to go to tomorrow, and I plotted out a route based on the best pictures other people took.

And it's free!

Happy satellite spying everyone!