OpenStreetMap.org is a project that creates and distributes free geographic data to the world. Major corporations like Facebook, Amazon, Apple, Microsoft, etc. utilize the services of OpenStreetMap (OSM).
It is a free and editable map of the world built up by volunteer users from around the world. Naturally, the editable nature of the map has led to some users propagating the strategic territorial interests of their own countries in the form of OSM edits, demarcating any disputed or non-disputed territory in favour of their own particular country.