• Department of Commerce
• Census Bureau Links
• U.S. Patent and Trademark Office, or search their Patent Database from 1976 to the present (has abstracts, but not the full patent image
  
• National Oceanic and Atmospheric Administration
• USA Jobs Search

• Stat-USA Contains daily economic news, frequently requested statistical releases, export and international trade data.
• Economics: our own WSU collection of links to economic research and statistics.
• North American Industry Classification System. -the new classification system soon to replace the SIC codes.
• Securities and Exchange Commission

Special topics

Agriculture: the Economics Research Service of the USDA

This has farm income numbers, as well as other economic data.

County Business Patterns running from 1977 to (nearly) current at the University of Virginia Social Sciences Data Center.

Economic Report of the President at the Government Printing Office

Budget of the United States Government from the Office of Management and Budget.

Interactive Data Sets, such as County Business Patterns, the Regional Economic Information System (REIS), National Income and Product Accounts and U.S. Imports and Exports.

The site at the University of Virginia allows you to create and download customized reports on variables you are interested in from these federal data sets. Excellent tool.

Importing/Exporting from the Treasury Department.

DataWeb from the International Trade Commission.

Import and export data between the United States and its trading partners.