Cross platform (lin/win/mac) geographical information system (GIS)
GeoServer repository
Viking is a free/open source program to manage GPS data
Toolkit for working with and mapping geospatial data
Visualize deep ocean biogeochemical sediment samples in 2D and 3D!
Plugins for OpenCPN
A Landsat 8 scene viewer
GeoData Web Editing [core SIG Web]
Distributed Version Control System for Geospatial data
Open Street Map (OSM) tools, OSM/XML parser, tag extractor
Geospatial Distributed Version Control System