Free software for maps
GPS track editor for editing tracks and planning (multiple) day tours
Open Source Desktop GIS with Surveying and Cartography Functionality
A low ram maps downloader to keep your ram free.
A software package for quantitative analysis in Panbiogeography
Tool to work on map data, to check the data and generate your own maps
Plugins for OpenCPN
Geostatistics and geosciences modeling software
A software gps simulator
The full-featured, easy-to-use desktop GIS with real processing power!
GeoData Web Editing [core SIG Web]
OTB is an open-source C++ library for remote sensing images processing
Search and download satellite images
Geospatial Distributed Version Control System