Jon Udell: Walking tour of Keene: followup
Here is another clever thing from Jon Udell. Last summer I played with his library lookup capability, and with just a little help from the local library folks, was able to set up searches based on ISBN, author, title and subject. This introduced me to bookmarklets, and now I use these lookup capabilities most every day. Very nice for a biblio junkie. I continue to try to get other folks to use them ... a very nice capability.
This new example makes use of Google Maps, which I have played with a bit as well, and although still Beta, boasts a very nice interface. Udell has worked on setting up a GPS-based tour of a set of locations, based on Google maps. He points to a live example, and outlines how to do this.
See also pointers to Google Maps Hacking Wiki, which I am also starting to explore.