Cross platform (lin/win/mac) geographical information system (GIS)
GeoServer repository
Open OSINT stack for monitoring, analysis, and risk detection
GWC is a tile server and caching proxy written in Java
Toolkit for working with and mapping geospatial data
Open source system for GPS tracking devices
Multiplatform Ham Radio APRS and Mapping Program
Land survey field crew data management for .RAW and .JOB file types.
Source code for ArcGIS Viewer for Flex - a great application framework