GeoServer repository
Toolkit for working with and mapping geospatial data
Open source cross-platform Java Visual Traceroute
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig
Tool to work on map data, to check the data and generate your own maps
Offline vector map display ported from OsmAnd
A C library for parsing/normalizing street addresses around the world
The full-featured, easy-to-use desktop GIS with real processing power!
OTB is an open-source C++ library for remote sensing images processing
Processing of GPS travel diaries
MeteosatTool is for visualization and processing meteo satellite image