MarketWatch -- Financial News and Information Web site.
Nielsen Media Research -- The world's leading provider of television audience measurement and related services.
Statistical Abstract of the United States -- The National Data Book contains a collection of statistics on social and economic conditions in the United States. Selected international data are also included.
U.S. Census Bureau -- Collects and publishes data about the people and economy of the United States.
U.S. Department of Commerce -- Compiles statistical data on U.S. commerce.
