I work with GIS and in all my work I try to use OSM instead of commercial maps because I believe in the power of freely shared information.

I confess not to be a great contributor with data on the map but I try to contribute in other ways by publicizing the OSM and helping other contributors with data handling for insertion into the OSM.

—- PT-BR —-

Apresentação do OSM https://github.com/cassioeskelsen/apresentacao_osm