OpenStreetMap is a crowd-sourced, open-source mapping platform created by a community of contributors in the Philippines, aiming to improve mapping data for roads, establishments, and other infrastructures. With over 1,000 contributors and a growing dataset, it supports various users, including navigators, disaster managers, and adventurers, especially during humanitarian efforts like Typhoon Haiyan. The presentation outlines how to participate in mapping and highlights resources available for community engagement in geographical mapping initiatives.