This document discusses OpenStreetMap, a collaborative project to create a free editable map of the world. It provides statistics on OSM's growth, encourages participants to contribute data, and demonstrates how OSM data can be accessed and visualized through tools like OverPass, TagInfo, various map APIs, and platforms like CartoDB, GeoCommons, and Stamen Maps. Videos and animations are linked to illustrate how OSM is edited and has grown over time. The presenter advocates for OSM as an open alternative to proprietary mapping platforms.