OpenStreetMap Sweden

OpenStreetMap creates and supplies free maps for free use.

OpenStreetMap Sweden is the Swedish mappers community on OpenStreetMap. Anyone is welcome to contribute or join the many projects and mapathons.

A good start is to join the mailing list, another one is to check out the Facebook group where hackathons are regularly advertised. The Wiki page also gives a good overview of what projects are active.

OpenStreetMap Sweden

Mailing list