American Immigration Lawyers Association (AILA)
http://aila.org/
Bureau of Consular Affairs
http://travel.state.gov/
Bureau of Democracy, Human Rights, and Labor
http://www.state.gov/g/drl/
Federal Government Benefits
http://www.govbenefits.gov/index.jsp
United States Department of Homeland Security
http://www.dhs.gov/dhspublic/
United States Immigration and Customs Enforcement
http://www.ice.gov/
United States Customs and Border Protection
http://www.cbp.gov/
United States Department of Justice Executive Office of Immigration Review
http://www.usdoj.gov/eoir/
United States Department of State
http://www.state.gov/
Foreign Consular Offices in the United States
http://www.state.gov/s/cpr/rls/fco/
United States Embassies and Consulates
http://usembassy.state.gov/
Social Security Administration
http://www.ssa.gov/