- David Rumsey Map Collection - free access to a private collection of historic maps
- Google Maps - maps, traffic, and route planning
- Historic Map Works - historic maps and directories
- Library of Congress Maps - digital historic map collections
- MapQuest – free map service with route planner
- New York Public Library Map & Atlas Division – historic map collections
- Old Maps Online - a search engine for online global map collections at libraries
- U.S. Geological Survey’s Historical Topographic Maps - topographic maps in GIS
- University of Texas Map Collection – UT’s historical map collection, many available online