Executive Office for Immigration Review — Provides information about the Executive Office for Immigration, its organization and responsibilities; includes forms, publications and a virtual law library.
Immigration and Naturalization Service (INS) — Features information on INS forms, fees and fingerprints; immigration services and benefits; laws, regulations and guides; and more.
Office of Special Counsel for Immigration-Related Unfair Employment Practices
United States Department of Justice

Foreign Consular Offices in US
U.S. Department of State: Bureau of Consular Affairs — Provides information about the Bureau of Consular affairs, its mission and services; includes international travel and immigration-related resources and links.
U.S. Department of State: US Embassies, Consulates, Diplomatic Missions — From the U.S. Department of State
United States Visa Information Web Site — Features consulate directory, FAQ on visas, and more.
Visa Bulletin — Summarizes the availability of immigrant numbers during the current month.
Visa Services — The many types of U.S. visas, including forms and FAQ.

Immigration and Naturalization Service (INS) — Features information on INS forms, fees and fingerprints; immigration services and benefits; laws, regulations and guides; and more.

GAO Reports and Testimony — Full text versions of all publicly released GAO reports beginning with FY 1995. Includes abstracts and a searchable database.

The Electronic Embassy — Directory and resources for the foreign embassy community in Washington, D.C.