لیست چند سایت مهم جغرافیایی

Federal Geographic Data Committee (www.fgdc.gov) 
USGS (United States Geological Survey) (www.usgs.gov) 
USDA Forest Service Pacific Southwest Remote Sensing Lab (www.fs.fed.us/r5/rsl/)
UCGIS (University Consortium for Geographic Information Science) (www.ucgis.org)
GISLinx (www.gislinx.com) 
The GIS Cafe (www.dacafe.com/GISCafe/home.html) 
NCGIA (National Center for Geographic Information and Analysis) (www.ncgia.ucsb.edu)

NSGIC (National States Geographic Information Council) (www.nsgic.org) 
URISA (Urban & Regional Information Systems Association) (www.urisa.org) 

NSGIC (National States Geographic Information Council) (www.nsgic.org) 
URISA (Urban & Regional Information Systems Association) (www.urisa.org)