Historical Cartography

Mapping Through the Ages: The History of Cartography

David Rumsey Map Collection

History of Cartography

Geographic Information Systems (GIS)

Federal Geographic Data Committee (FDDC)

FGDC GeoPlatform

GeoPlatform Dataset Search

Georgia geographic information systems

Georgia Spatial Data Infrastructure (GaSDI)

Georgia GIS Clearinghouse

Historical Geographic Information System (HGIS)

National Geographic Information System (NHGIS)

Great Britain Historical Geographical Information System (GBHGIS)

A Vision of Britain through Time

The Valley of Shadow

The Digital Atlas of Roman and Medieval Civilizations

Electronic Cultural Atlas Initiative

China Historical GIS

E-learning

Duolingo

Khan Academy

W3Schools

Codecademy

E-book software

Calibre

File converters

Zamzar

CloudConvert

Reference management software

Zotero

Zotero Connectors

Online archives

Internet Archive

Wayback Machine

Digital Public Library of America (DPLA)

Georgia archives

Georgia Government Publications (GGP)

Digital Library of Georgia (DLG)

The Georgia Official and Statistical Register

Georgia Historical Society (GHS)

Georgia Historical Society Research Center