GeoURL
I’ve added my weblog to the GeoURL database, which indexes websites by physical location using latitude and longitude. The idea is you can find a neighbor’s weblog, or the website of a restaurant near you - or, a weblog of someone in Brazil.
Geolocation apps are just getting started, and I think this is just one of the first of some interesting applications that will emerge. There a very interesting one tagging the London tube I wrote about earlier.