Google news travels faster than I do these days, but just in case: Check out Google Maps Satellite feature. Look up an address, then click "Satellite" in the upper right to switch to an overhead photo of the location. It zooms and pans just like the map view, and you can even plot driving directions on the photo.
Then check out Matt Haughey's mash-up of satellite images and Flickr annotations to document his childhood, and the "memory maps" of others playing along. (Nothing Google-specific about Matt's idea or satellite photos on the web, but Google's interface is just plain inspiring.)