The IRS website has many great tax resources for you
This form is used to determine federal income tax withholding
This form is used to request the taxpayer identification number and certification for contractors
This form is required to be filled out by new employees on their date of hire for the Immigration and Naturalization Service
Social Security Administration
Social Security Administration administers retirement, medicare, disability and other benefits
U.S. Small Business Association
Programs and services to help you start, grow and succeed
U.S. Department of Commerce
Federal Citizen Information Center
A catalog of Free and low-cost federal publications that may be of interest to you. Also contains a lot of important consumer information