MapQ is an easy to use wrapper for the Mapquest Geocoding API. It advises developers to interact with the API by making the environment variable in the local environment. Developers can also interact with the Geo class to work with the API.
Created in 2006, Big Art Mob's original purpose was to accompany the Channel 4 show, 'Big Art Project'; the goal being to create the UK's first comprehensive map of street art. The site is now being re-launched along with iPhone and iPad applications, inviting users to upload and map public art anywhere in the world.
With 25 million business listings over nine countries, open data company Factual has taken a first step toward creating a place database to which anyone can contribute. With location-based applications now more popular than ever, the data is extremely valuable to developers. Factual is providing it via its API, currently for free.