American Fact Finder
From the US Census Bureau.
Country Studies: Area Handbooks
"A continuing series of books prepared by the Federal Research Division of the Library of Congress under the Country Studies/Area Handbook Program sponsored by the Department of the Army. This online series presently contains studies of 100 countries."
Eldis Country Profiles
"Search for information on economic, political and environmental issues in countries throughout the world. Eldis makes a qualitative selection of materials and structures it for easy access."
The Handbook of Texas
"A multidisciplinary encyclopedia of Texas history, geography, and culture. It comprises more than 23,000 articles on people, places, events, historical themes, institutions, and a host of other topic categories...accessible articles that provide factual, nonpartisan accounts on virtually every aspect of Texas history and culture."