After seeing Jason’s guest map I’ve decided to add one to my site as well. I’m curious to see who (if anyone) signs up on it. If there are any foreigners reading, now is your time to declare your nationality.
I modified the link in the sidebar to be a target link instead of using Javascript to open a new window, for the benefit of browsers that have problems with Javascript links. My justification for opening it in a new window is that the map has a close button and no link back to my site, so people could become confused. If it didn’t open in a new window, they might hit close and leave the site prematurely.