• Bureau of Geographic Information Systems - web site of Bureau of Geographic Information Systems (BGIS), Office of Information Resources Management (OIRM), New Jersey Department of Environmental Protection
• The Encyclopedia of Earth
• ESRI ( ESRI designs and develops the world's leading geographic information system technology.)
• ESRI GIS Dictionary
• The Geography Network ( a global network of geographic information users and providers)
• Historical USGS Maps of New England and NY (U.S. Geological Survey collection of the University of New Hampshire Library)
• New Jersey Geographic Information Network ( provides access to geodata through the NJGIN)
• The Urban and Regional Information Systems Association (URISA - a non-profit professional and educational association that promotes the effective and ethical use of spatial information and information technologies for the understanding and management of urban and regional systems)

Last updated: 10/26/2023