Darnell Clayton found a new feature in Google's social network, orkut.
"The friends map on orkut.com is a feature offering powerful, user-friendly mapping technology to see where all of your friends are located around the world. By clicking on any of your friends' pictures on the right-hand side of the map, you'll be taken to their locations on the map."
To see your friends on a map, go to this page (you need to have an orkut account). This Google Maps mashup uses the location information you put in your orkut profile.