United States - Wikipedia User-created encyclopedia article about the Unites States. Includes an interactive map and information on the U.S. history, political divisions, geography, economy, ...
USA.gov: The U.S. Government's Official Web Portal Official web portal for the United States government. Includes federal, state, and local government resources, a guide to government agencies, online services, ...
http://www.usa.gov/
50 States.com Extensive collection of factual information about each of the United States and their capitals.
http://www.50states.com/
United States - World Factbook Offers a map of the United States, country information, including geography, economics, and more.
National Atlas of the United States of America Design and explore interactive multimedia maps of the country's natural and socio-cultural landscapes. From the U.S. Geological Survey and its partners.
http://www.nationalatlas.gov/
Stat-USA Browsable business, trade, and economic information from the U.S. Department of Commerce.
