[GIS] Seeking Free and Open Source GIS Desktop packages

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Can someone give me a list of free and open source GIS desktop packages?

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http://freegis.org/ - the oldest and perhaps most comprehensive directory of free GIS software and projects.

Wikipedia has most of them listed

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• QGIS
• uDig
• OpenJump
• gvSIG
• TerraView
• Kosmos
• WhiteBox
• MapWindow
• GeoDa
• If you consider Google Earth as a GIS application, Nasa's WorldWind is an open source alternative.
• Epi-map, part of CDC's Epi-info epidemiology package, may be worth a look if you're in that line of work.
• OpenMap's free too. UI's pretty old school though. I prefer qGIS or uDig.
• QGIS supports native SAGA grid format so it is very easy to work with these two programs together and use advantages of both