Explore the Google Geocoder Web service that takes a street address and returns data about that address including its longitude and latitude. Combine it with the Google Maps API and XSLT to
create data overlays for display in Google Maps and Google Earth. See for example how the musical group Nine Inch Nails created a geographical download data display, of its new release "The Slip", that it produced using Google Earth and KML. This brilliant concept hints at the possibilities available with Google's Geocoder.