American Immigration Lawyers Association (AILA)
http://www.aila.org

Executive Office for Immigration Review (EOIR)
http://www.usdoj.gov/eoir

U.S. Citizenship and Immigration Services
http://www.uscis.gov

U.S. Department of Homeland Security
http://www.dhs.gov/dhspublic

U.S. Department of Justice
http://www.usdoj.gov

Visa Bulletin – U.S. Department of State
http://travel.state.gov/visa/frvi/bulletin

USCIS Case Status
https://egov.uscis.gov/