Census Watch
- http://www.censuswatch.com/
- ESRI sponsored clearing house, providing information about US census tract TIGER data availability and modifications.
Community Mapping Network
- http://shim.bc.ca/
- Created to share a wealth of natural resource information and maps with communities in British Columbia, Canada. Allows users to add data.
Energisite.com
- http://www.energisite.com/
- On-line access to the Divestco Canadian libraries of raster and digital well log data. Also well ticket and scanned images of government well documents.
GeoNames
- http://www.geonames.org/
- A worldwide geographical database with a search function, browsable maps, and downloadable data files available free under a Creative Commons attribution license.
Kansas Geospatial Community
- http://gisdasc.kgs.ku.edu
- State of Kansas Data access and support center (DASC). DASC catalogues, archives, and distributes databases with FGDC compliant metadata and direct FTP access.
NOS Data Explorer
- http://www.noaa.gov
- Offers interactive mapping tools that allow users to locate NOS products in any area in the United States and its territories through a metadata catalog.
USGS Geography
- http://geography.usgs.gov/
- National mapping information from the U.S. Geological Survey. A good place to start the search for many kinds of GIS data.
