How to obtain longitude and latitude for a street address programmatically (and legally)
Supposedly, it is possible to get this from Google Maps or some such service. (US addresses only is not good enough.) Sijin The term you're looking for is geocoding and yes Google does provide this service. New V3 API : http://code.google.com/apis/maps/documentation/geocoding/ Old V2 API: http://code.google.com/apis/maps/documentation/services.html#Geocoding Tim Farley In addition to the aforementioned Google geocoding web service , there is also a competing service provided by Yahoo . In a recent project where geocoding is done with user interaction, I included support for both. The reason is