- CIA World Factbook
- Country Studies / Area Handbooks (Library of Congress)
- Dictionary of abbreviations and acronyms in Geographic Information Systems, Cartography and Remote Sensing by Philip Hoehn and Mary Lynette Larsgaard
- Map Datums: an interactive overview (University of Waterloo)
- Map Projection Home Page (courtesy of Peter H. Dana, Geographer’s Craft Project, Department of Geography, University of Colorado at Boulder)
- York University campus maps.
- Australia
- Canada
- Geo-Names (Google map based gazetteer)
- Great Britain
- US Gazetteer (US Census Bureau)
- USGS Geographic Names Information System
- Getty Thesaurus of Geographic Names
- DeLorme Mapping
- DigiMap Data Services Inc.
- DMTI Spatial Inc. (Markham, Ont.)
- Environmental Systems Research Institute (ESRI)
- Collins Bartholomew
- International Travel Maps and Books
- MapArt (Oshawa, Ont.)
- Map Link (Santa Barbara, Calif.)
- National Geographic Society
- Pathfinder Maps (Ottawa, Ont.)
- Rand McNally
- World of Maps (Ottawa, Ont.)
- WorldSat (Burlington, Ont.)