Cross platform (lin/win/mac) geographical information system (GIS)
Open-source JavaScript library for mobile-friendly interactive maps
Toolkit for working with and mapping geospatial data
Spatial Statistics Libraries & Tools for GeoTools, GeoServer, uDig
Plugins for OpenCPN
National Responsibility Assessment for Endangered Species/Habitatats
Geodesy based library (geodetic and geocentric functions)
Korean Spatial DBMS Driver
FastVersion is a Qgis plugin for data versioning in a Postgis database
Google Maps plugin for Cordova
Some pythons plugins to enhance fantasy maps creation with QGis