Business and Networking Resources To access the National Business Network Small Business Resource Guide Click Here Please check the links below for additional helpful links and resources: United States Small Business Administration - SBA - Services provided by the U.S. Small Business Administration Offices and Partners. Internal Revenue Service - Tax information for businesses - employer ID numbers, starting a business, operating a business, closing a business, employment taxes and more. Business and Non Profit Gateway on U.S. Goverment official web portal - Facts and information about contracting with the U.S. Government, export licensing, online training, government auctions, and more. National Business Network Small Business Resource Guide - resources, articles, and contact information for small businesses.