What API is absolutely the king of popularity? It is the Maps API Web Services, a collection of HTTP interfaces to Google services providing geographic data for maps applications. While my fellow writer, Janet blogged on the launch of its next generation at MorethanaMap.com , this article is more of a nuts and bolts look at the champion of all location APIs, hoping you catch a drift of how easy it is to add geo-coded location functionality in your app,website,product!
eeGeo has released a Points of Interest API that allows developers to submit and manage custom points of interest to be used primarily with the eeGeo example app. The API also allows outdoor POIs to be created and includes search query options such as free text search and category search.