Now that it's so easy to tag photos with latitude and longitude (see my ImageIngesterPro post about the new GPS tagging feature), I couldn't resist creating a Google Photo Map: a map with markers that you can click on to see photos. The job is totally automated using a script I wrote; you don't have to cut a single line of HTML or JavaScript. You can read about it on my Basepath Blog at
http://basepath.com/index-real.php.
--Marc