Open Source Routing Machine - C++ backend
Cross platform (lin/win/mac) geographical information system (GIS)
Ultra Fast Geospatial Database & Geofencing Server
GeoServer repository
Traccar GPS Tracking System
Simple GPS tracking server
Toolkit for working with and mapping geospatial data
GWC is a tile server and caching proxy written in Java
My OSM projects in bus routings and 30 Districts reallocated
Open source system for GPS tracking devices
Minimalistic wide-open GPS-locator/tracker
Google Earth Enterprise - Open Source
Braille & ASCII world map renderer for your console
Q-Rap (www.QRap.org.za) is a Radio Network Planning plug-in for QGIS
Multiplatform Ham Radio APRS and Mapping Program
Land survey field crew data management for .RAW and .JOB file types.
Dendrochronological sample measurement, curation and analysis program
Source code for ArcGIS Viewer for Flex - a great application framework