| OSM | OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world. The maps are created using data from portable GPS devices, aerial photography and other free sources. Both rendered images and the vector dataset are available for download under a Creative Commons Attribution-ShareAlike 2.0 licence.[1] Registered users can upload GPS track logs and edit the vector data using the given editing tools. OpenStreetMap was inspired by sites such as Wikipedia — the map display features a prominent 'Edit' tab and a full revision history is maintained. Source: wikipedia.org |