Amazon
http://www.whrc.org/tropfor/humanimpacts/WHRCpre-lba.html
Arkansas
http://www.cast.uark.edu/local/hunt
California
http://www.library.nwu.edu/map/statemap.html
http://www.lib.berkeley.edu/UCBGIS/gisdirsg.html
http://www.lib.berkeley.edu/UCBGIS/gisnet.html
China
http://www.umich.edu/`iinet/chinadata
Coastline Data
http://www.ngdc.noaa.gov/mgg/shorelines/gshhs.html
Connecticut
http://www.magic.lib.uconn.edu
Consortium for International Earth Science Information Network (CIESIN)
ftp://ftp.ciesin.org
Demographics
http://www.easidemographics.com
General Data
http://www.frw.ruu.nl/nicegeo.html#gis
http://www.aztechcon.com/freedata.html
http://www.fgdc.gov/Comminucations/CooperativeAgreements/FundingPrograms/ccap94win.html
GIS Links
http://www.gislinx.com
http://www.mytoplink.net
http://www.esri.com/base/common/jumpstation/jumpstation.html
Geowarehouse
http://www.geowarehouse.com/geodata.html
GIS List Archives
http://www.gis.umn.edu/rsgisinfo/lists.html
Iowa
http://www.uiowa.edu/servers/servers_geo_data.html
Louisiana
http://www.atlas.lsu.edu
Mississippi
http://www.maris.state.ms.us
Missouri
http://msdis.missouri.edu/
Montana
http://www.nris.msi.mt.gov/gis/gis.html
National Geophysical Data Center
http://www.ngdc.noaa.gov
National Spatial Data Clearinghouse
http://www.nsdi.usgs.gov/nsdi
National Spatial Data Infrastructure
http://www.epa.gov/nsdi
Oregon
http://www.sscgis.state.or.us/data/index.html
Pennsylvania
http://www.pasda.psu.edu
Rhode Island
http://www.edc.uri.edu/rigisdata
San Diego
http: //www.sandag.cog.ca.us/ftp/html/projects/ris/gis/gis.html
Soils
http: //www.ftw.nrcs.usda.gov/ssur_data.html
South American and Central American Data
http://www.gis.ciat.cgiar.org
US EPA
http://www.epa.gov/oppe/spatial.html
U.S. Fish and Wildlife Service
http://www.fws.gov/data/gislist.html
Utah
http://www.agr.state.ut.us
Wetlands
http://www.nwi.fews.gov
Thanks to all people to lent their assistance to this list. Doug Mensing, Susan Huse, Bob Hallett, Bob Edwards, Josephine Burns, Jason Clemis, Jennifer McCollom, Shuming Boa, Jane Pfister, Greg Rose, Brian Edmond, Mike Sloop, Anthony Spicci, Dean Easton, Timothy Hayes, Andy Nelson, Ben Williams, Gary Bowles, Larry Park, Terry Morse, Fraser Roberts, Danita Winegarten, Ken Bates, Shepard McAninch, James Koennicke, Eric Fowler, Matt Peters, Matt Artz, David Nealey, Deb Southworth, Jay Raiford, Christopher Miner, Jim Hurley, Alex Rocco