ADC Government Relations has just compiled a staff directory and contact information for the 109th Congress (January 2005-December 2006). ADC members can now request the specific congressional aide to discuss particular bills concerning foreign affairs, civil rights, civil liberties and immigration. Keep in mind that these listing are for policy aides, not case workers. If you are having problems with an immigration case, concerns about federal benefits, etc, request a person in the Congressional office who takes care of cases. These staffers are usually in the district office in your state.
109th House Directory
109th Senate Directory