Statistical Abstract of the United States
As the National Data Book it contains a collection of statistics on social and economic conditions in the United States.  The Abstract is also your Guide to Sources of other data from the Census Bureau, other Federal agencies, and private organizations.

The American Factfinder
A comprehensive source for population, housing, economic, and geographic data.

The Economic Census
Information about sales and employment data for businesses sorted by geography.

Indiana Business Research Center
Mounds of data on the State of Indiana and its respective counties produced by the Indiana Business Research Center.

Compensation Surveys
Information complied by the Bureau of Labor Statistics on local compensation rates.

Understanding USA
A visual framework for understanding many issues involving the United States.

InfoUSA.com
Allows you to search 88 million households and 10 million businesses by name or yellow pages category.

Microsoft's bCentral.com
Integrated solutions for helping you market your business.