Open Source Geospatial Foundation

www.osgeo.org

Maptools

www.maptools.org

FreeGIS

www.freegis.org

FreeGIS Tutorial

www.freegis.org Tutorial

Open Source GI

www.opensourcegis.org

GRASS

grass.itc.it

QGIS

qgis.org

UDIG

udig.refractions.net/confluence/display/UDIG/Home

OpenJUMP

openjump.org

UMN MapServer

mapserver.gis.umn.edu

PostgreSQL

www.postgresql.org

PostGIS

postgis.refractions.net

MapBender

www.mapbender.org

GRASS

grass.itc.it