How to convert an address to a latitude/longitude?

Question

How would I go about converting an address or city to a latitude/longitude? Are there commercial outfits I can \"rent\" this service from? This would be used in a commercial

Answer 1

Thought I would add one more to the list. Texas A&M has a pretty decently priced service here: http://geoservices.tamu.edu/Services/Geocode/

A good option if you have a pretty large set of addresses to geocode and don't want to pat 10k to Google or Microsoft. We still ended up using the returned data in a Google Map.