I find creating location functionality fun whether it is a listing system or simply identifying a user location. Many complex and interesting functionalities are possible.
A listing search system based on geographic location, proximity and category. These listings initially cover North America but eventually will cover the globe. Users enter either a city / state combination or a zipcode, select a distance and a category (optional). The resulting listings have addresses that lie within the selected distance from the selected location that belong to the selected category.
A Social Networking and Destinations Site for the US and elsewhere. The site is divided into the main domain which is edited by the site admin and the community domain which is the social networking part.
Users can enter destinations and make them available for others to search. Destinations use location map functionality and a category system for managed display of content.
