Other Links

GIScience, Institute of Geography, University of Heidelberg

OSGeo: The Open Source Geospatial Foundation

OpenMaps.online: Maps and Webmapping based on free data and software

OpenNauticalChart: Free nautical chart

OpenSeaMap: Free nautical chart

OpenTerrain: The main topic of this site is the visualization of
geospatial and medical data with open-source software.

OpenTopography facilitates community access to high-resolution, Earth science-oriented, topography data, and related tools and resources.

NASAs WorldWind: Open Source Globe Viewer