» Google Maps
Provides directions, interactive maps, and satellite/aerial imagery of the United States. Can also search by keyword such as type of business.
» MapQuest
Find directions for and explore towns and cities worldwide. Display addresses on a map, view nearby businesses, get driving directions and maps, and plan a trip with city information. Also includes aerial photographs of selected areas.
» National Atlas of the United States
U.S. government map portal providing access to many government branches including USGS, Census, U.S. Forest Service, NOAA, National Park Service and others.
» Shaded Relief Map of the World
Interactive global map, including topographic relief, satellite imagery, and political information. Includes place finder.
» United States Library of Congress Map Collections
Top-level categories include cities and towns, cultural, landscapes, conservation and environment, military battles and campaigns, discovery and exploration, transportation and communication. Searchable by keyword, location, creator, subject, and title.
» Windows Live Local
Combines online mapping and local search, uses a scratch pad to take notes, and allows to search questions around the United States in a geographical context.
