The Columbia Gazetteer of North America - With 50,000 entries, the Gazetteer covers every incorporated place and county in the United States, along with several thousand unincorporated places, special-purpose sites, and physical features, as well as Canada, Mexico and the Caribbean.
Google Maps - an online service that allows users in the U.S. to find location information, navigate through maps, and get directions quickly and easily. Features include: Draggable maps, Integrated Local search results, and Turn-by-turn directions.
HomeTownLocator Gazetteer - Site contains data for 1.8 million physical and cultural
features, US census information for 98,000 local areas and distance calculations for 177,000 populated places. Links to aerial photos, regional, local and topographical maps.
Internet Map Resources - Site by the Univ. of Texas Library presents an extensive collection of maps resources available on the Internet. Categories include: Cartograhic Reference, City Map Sites, Country Map Sites, Historical Map Sites, State and Weather Map Sites.
Map Collections: 1500 - 2004 - Site contains the largest and most comprehensive cartographic collection in the world with collections numbering over 4.5 million maps including 60,000 atlases, 6,000 reference works, numerous globes and plastic relief models, and a large number of cartographic materials in other formats, including electronic.
National Atlas of the United States - You've seen other atlases. They're typically big books of paper maps. The pages in this atlas are here on the Internet whenever you need them. This is a new portrayal of America in maps. You've found the single best Federal source for national maps and geographic information on the Web.
National Geographic Map Machine - "Locate nearly any place on Earth, search and print historical, weather, and population maps, and more with our dynamic atlas."
Rare Map Collection - a collection of about 800 historical maps spanning nearly 500 years, from the sixteenth century through the early twentieth century.
Reference Maps - Locate states, counties, urban areas, school districts, places, zip codes, census tracts, census blocks, and other Census geographies.
Road Construction - Rand McNally - Rand McNally gathers information from all 50 United States and some Canadian providences and updates its database once a month. You can search by state, road name, or construction start and ending date.
Ryhiner Project, The - more than 15,000 maps, charts, plans and views from the 16th to the 18th century, covering the whole globe
TerraFly: Virtual 'Fly' Over the Entire U.S. - This site by the School of Computer Science at Florida International University, allows users to view Geographic Information Systems images either by place (longitude/latitude) or street address. A unique feature of this service allows users to view the images continuously and seamlessly, giving the user a feeling of 'flying over' the photographed land areas.
Thematic Maps - View census data in graphical format for all geographies from the nation to individual Census blocks. Data are available for Census 2000, the 1990 Census, the 1997 Economic Census, and 2001 Population Estimates.
Yahoo! Maps - "Yahoo! Maps, Driving Directions, Satellite View and Traffic. Rated the best online mapping experience."
Zoom Into Maps - Maps help us make sense of our world. This Library of Congress site explores maps and how they are used, with sectionsfor local geography, exploration and discovery, migration and settlement, environmental history, travel and transportation, military, pictorial, and unusual maps.