(ProQuest) - Provides government statistics, business, trade, and research information, and private and international statistical information. U.S. government statistics go back to 1973 and private and state sources go back to 1980.
Maintained by the National Library of Medicine, this site has a wealth of practical information about many health-related issues. You can do a general search for statistics and it will list them by category and provide the original source citations.
A division of the Centers for Disease Control and Prevention, their website is free, searchable, and contains a vast array of health statistics and surveys. They publish the National Vital Statistics Report.
(Cornell University) - A search interface to the Roper Center for Public Opinion Research, a non-profit education and research organization that studies politics, government, public institutions, international relations, business, social affairs, and consumer behavior. Includes sources from major broadcasting and news organizations.