"Using GIS intelligently requires a grounding in geographical knowledge.
Applying the technology to history requires knowing how to contextualize and interpret historical sources."

Anne Kelly Knowles, 2002

Interesting Links - GIS Online

ESRI.com - The leader in GIS software maintains a site with many resources and links to outside suppliers of map data.

Geography Network - A popular site for maps and geography links.

National Geographic.com - Full resourse for maps and educational material.

USGS National Mapping Information - A good place to start for information on the United States.

TerraServer - This Microsoft site contains high-resolution aerial photographs and topographic maps from USGS. These maps can be freely downloaded and used.

GlobeXplorer Aerial Atlas - a commercial service that can deliver aerial images from National to House level views.

GIS at the National Park Service - The National Park Service has extensive GIS projects underway. Over 200 parks now use GIS for documentation, interpretation and analysis. The applications are unlimited.

New Jersey Spacial Data Clearinghouse - an example of the level of data that states are beginning to offer. Not all states have reached this level, but most states do have some level of GIS information available.

A Place in History: A Guide to Using GIS in Historical Research by Ian Gregory, AHDS, 2002 - An online manual on techniques, practices and ethics of using GIS for historical research.

Salem Witch Trials - A new way of teaching history through the use of linked original archival documents through a relational database and GIS.

Valley of the Shadow - Compares and contrasts 2 neighboring communities on different sides of the Civil War using primary maps and documents linked with GIS.

Lewis & Clark Expedition - Historic maps very effectively used in a GIS application to present history and geography. From the David Rumsey Map Collection.

GIS Resourses on the Web - A far-reaching list of sites and servers found to be of interest to the GIS community. It is maintained by Bruce M. Gittings and Anup Pradhan at the Department of Geography in the University of Edinburgh, in collaboration with the Association for Geographic Information.

CemeteryMap.com - a start-up site that hopes to be able to present searchable maps online for cemeteries in the US.