Illinois Chamber of Commerce
Illinois Institute for Rural Affairs
This interesting site provides data on local governments. By selecting a county from the electronic atlas, users can obtain a list of the commonly requested information. On the following level, cities selected in the designated county will provide additional information.
Illinois Retail Merchants Association
Illinois State Library
Find-It! Illinois, the Illinois State Library's one-stop source for Illinois library, government, and educational information.
Internal Revenue Service
Department of the Treasury
Searchable database buyers guide of 600,000 U.S. manufacturers, suppliers, distributors, and services. Locate manufacturing products, services, and suppliers among 10,000 product categories.
Manufacturers' News, Inc.
Since 1912, MNI has been the most trusted source for comprehensive business information profiling over 400,000 U.S. manufacturers. Directories and databases are customized by geography, industry, and size.
The Consumer Price Index
This is a website that measures inflation as experienced by consumers in their day-to-day living expenses and is used as an economic indicator. The site also contains an inflation calculator.
U.S. Chamber of Commerce
U.S. Small Business Association
The official resource to help businesses quickly find compliance information, forms, and contacts from multiple U.S. government websites.
University of Illinois Institute of Government and Public Affairs
Public Policy Reports
Formerly known as the Federal Citizen Information Center.