Mappr!
www.mappr.com
An experiment for "exploring a place, based on the photos people take," this site places photos on the Flickr photo-sharing site onto a map of the U.S. and Canada. Created by Eric Rodenbeck and Michal Migurski of the San Francisco Web site and applications design firm Stamen Designs, Mappr! uses the tags, or phrases, that are customarily appended to Flickr photos and analyzes them to infer where they were taken. Type in, say, "Route 66" and see the photos strung out along the famous highway.
"Mappr! doesn't know anything about Route 66, and Flickr doesn't know anything about Route 66, but together they found patterns that didn't exist in either one," says Rodenbeck.