Geographic Information
- Atlapedia Online, physical and political maps, facts and statistics on countries of the world
- Country Studies/Area Handbooks Series, Library of Congress, Federal Research Division
- Free ZIP Code Lookup, an international resource
- How far is it?, to estimate distances between two cities
- MapQuest, an international interactive street guide
- Maps and References, a meta site by Mark MacLennan, University of Iowa Center for Global & Regional Environmental Research
- Perry-Castañeda Library Map Collection, The University of Texas at Austin; over 230,000 maps
- World Factbook, from the CIA