The University of Illinois Library subscribes to Gale's Associations Unlimited, which includes information from the Encyclopedia of Associations.
The University of Illinois Library subscribes to Lexis-Nexis Academic Universe, which has full-text articles, TV and radio transcripts and lots of other news information.
Lexis-Nexis Academic Universe also has all kinds of business information, including comparative information on specific companies.
The U.S. Census Bureau's County Business Patterns database contains employment statistics, by Standard Industrial Classification for all states and counties in the United States. To search the database, select a state (or select the entire United States), then narrow your search by SIC code. If you're viewing information for a specific state, then decide you want to compare those statistics to other states, click the compare button.
The Census Bureau also publishes economic census profiles for many manufacturing and service industries. In addition, they have a one-stop census page called American FactFinder that allows users to search multiple census databases and compile custom reports.