Send suggestions to email@example.com.
Digital Harlem, a project by a team of outstanding U.S. historians at the University of Sydney, led by Stephen Robertson and Shane White. The project won the Roy Rosenzweig Award given by the Am. Historical Association last year for outstanding work in digital history.
UNC's GIS DataFinder, http://www.lib.unc.edu/reference/gis/datafinder/index.html
NC Maps (historical maps online hosted at UNC), http://www.lib.unc.edu/dc/ncmaps/
Historioal aerial photos for select NC counties (not georeferenced, but displayed on Google Maps for choosing downloads), http://www.lib.unc.edu/reference/gis/USDA/index.html
NC OneMap, http://www.nconemap.com/
Historal spatial data collection at NC State, http://www.lib.ncsu.edu/gis/historic.html
Historical county boundaries for every US state, from the Newberry Library: http://publications.newberry.org/ahcbp/downloadfiles.html
Davis Library site outlining opportunities for the UNC community, http://www.lib.unc.edu/reference/gis/training.html
A Place in History, an online [and print] book by Ian Gregory, http://hds.essex.ac.uk/g2gp/gis/index.asp (see also his later print book, Historical GIS: technologies, methodologies and scholarship)
SEE ALSO our teaching page
Ian Gregory's excellent HGIS Research Network page, http://www.hgis.org.uk/
Association of American Geographers Historical GIS Clearinghouse and Forum, http://www.aag.org/cs/projects_and_programs/historical_gis_clearinghouse