Marketing 

One-stop index of statistical information prepared by the United States government, browseable by subject and agency.

Compendium of statistical data on the US population and economy. Includes demographic information, data on trade, consumer expenditure, manufacturing and much more.

Government search engine's index of web sources of government business statistics.

Private index to economics and business statistics information available on the web, including hard-to-find information from private, non-governmental sources, as well as regional statistics information.