What is OpenStreetMap?
OpenStreetMap is an open source project with the aim of creating a free map of the world. There are currently more than 120,000 contributors in the project! Some of them also contribute to OpenSeaMap. Just as we collect nautical information, there will be data on roads, railway, signs, rivers and much more in the database. We use much of the same data as OpenStreetMap and store all our data in the database. Because contributors collect the data without using copyrighted sources, we own all the data and hence it can be distributed free. For more information about OpenStreetMap visit the OSM-Wiki.