There have been a mainstream news headline floating around the web today pertaining to Google Maps hacks and mash-ups:
Google Maps Make Demographics Come Alive
ABCNews.com - June 9th, 2005
Tracking sexual predators in Florida. Guiding travelers to the cheapest gas. Pinpointing $1,500 studio apartments for rent in Manhattan. Geeks, tinkerers and innovators are crashing the Google party, having discovered how to tinker with the search engine's mapping service to graphically illustrate vital information that might otherwise be ignored, overlooked or not perceived as clearly. (Read the full story..)
If this link expires, there are many more links here..