COMPREHENSIVE GOVERNMENT SITES
USA Services - Federal Citizen Information Center - Info.Gov
http://www.info.gov/
"Have a question about Federal programs, benefits, or services? We handle millions of inquiries from citizens trying to find answers to their questions about government. Pick your favorite way to get out of the government maze!"
First Gov:
USA.Gov - U.S. Government Services
http://www.firstgov.org/
First Gov Reference Shelf
U.S. Government's official web portal
http://www.usa.gov/site_index.shtml
Find online services to conduct your business with the U.S. government, including web sites of departments and agencies. Search topics to find benefits, and locate travel information, forms, and government employment opportunities.