The USGS national digital geoscience archive and map database. Created in partnership with the National Cooperative Geologic Mapping Program and the American Association of State Geologists, this online resources provides access to current as well as historical maps and other related geographic, cartographic, and scientific materials.
Current Geographical Publications (CGP) is an open access, non-profit service to the scholarly community. The site provides access to an extensive, searchable list of publications in the fields of geography and related areas.
A resource of the Getty Research Institute, the TGN database provides access to geographical nomenclature, terminology, and data. Though the coverage is worldwide, the primary focus is on areas of historical, cultural, and artistic significance.
A resource of RUcore: Rutgers University Community Repository, the New Jersey Historical Maps Portal to access RUL's Special Collections and Archives digital maps online.
The GEONet Names Server is official repository of all standard spellings of all foreign geographic names, under the auspice of the United States Board of Geographic Names.