Converts addresses into a latitude and longitude point, useful for maps or for plugging into other mapping APIs, such as the CloudMade NavEngine for directions between two points. CloudMade is built upon OpenStreetMap data.
Almost every app that uses a mapping API needs latitude/longitude points. To get geocodes you need to convert an address to a point on the earth. That's where you'll need one of the 54 geocoding APIs in our directory. This post covers seven free geocoders and compares them on several aspects.