DMOZ - Regional: North America: United States: Government

Collection of resources for current and historic government information including House of Representatives and Senate links; executive, judicial, and legislative resources; and historical documents in American history.

Data.gov

Official U.S. government site providing increased public access to federal government datasets. Includes metadata, how to access the datasets, and tools that leverage them.

Federal Register

Daily journal of the U.S. government. Features notices of public meetings, hearings, rule changes, investigations and funding in areas such as money, environment, exports, science, business, health and welfare.

IIP Digital U.S. Department of State

U.S. Department of State portal about the people, places, values and ideas that define the character of the United States. [Arabic, Chinese, English, Farsi, Russian, Spanish]

USA.gov

Official web portal of the US government. Contains comprehensive information on government resources, services and forms for citizens, businesses and government.