I know most people have their location in their profile.. But I think it would be interesting to see an overview of where everyone is...
Lets see if this works...
http://g.co/maps/nrmt2
It's a Google map that I made public, but unlisted. Anyone can edit it to add a thumbtack with their location and comments.
It won't be found via google search however. You can only get to it via the link in this thread.