City Dashboard: http://citydashboard.org

Many Eyes: http://www-958.ibm.com/software/analytics/manyeyes

MapTube: www.maptube.org

NodeXL: http://nodexl.codeplex.com

Pajek: http://pajek.imfm.si/doku.php?id=pajek

Surveymapper: www.surveymapper.com