The SBA's almost encyclopedic listing of links in and out of government of interest to small business owners.

The Commerce Business Daily, (CBD) lists notices of proposed government procurement actions, contract awards, sales of government property, and other procurement information. Each edition contains approximately 500-1,000 notices.

PRO-Net - The U.S. Small Business Administration, the Department of Defense, the Office of Management and Budget and the General Services Administration have taken steps to simplify the federal contracting process by creating an integrated database of small businesses that want to do business with the government.

Business.gov guides you through the maze of government rules and regulations and provides access to services and resources to help you start, grow, and succeed in business. Its "Regional" listing gives in-depth information by state, and its "Industries" section gives information and links to in-depth information on a range of different industries.

Everything you'll want to know about NAICS codes including a helpful resource for looking up specific codes

Dun&Bradstreet - the site to obtains a "DUNS Number" the starting point in doing business with the Federal government

FedBizOpps is the single government wide point-of-entry for federal government procurement opportunities over $25,000.

A gateway to government information, managed by the National Technical Information Service (NTIS), as part of its information management mandate

The entry portal to all government information and web sites

A complete and constantly updated list of all government sales and auctions