Related link: http://www.gisuser.com/content/view/6585/
The clever developer of this site has incorporated the Google Map API along with some publicly available crime data from the City of Chicago. Visitors can browse crimes by type, street, date, police district, ZIP code, Ward, or specific location. Viewing a them like Arson will reveal details of a specific occurrence sorted by date/time accompanied by an address and a direct hyperlink to a crime map served via the Google map API.
Are you famliar with any other inovative hacks? If so please share some ideas.