U.S. Government 

• BRB Publications: Public Records Resource Center
  "BRB's Free Resource Center is a comprehensive and searchable list of free public record sites along with additional tools to locate sources for civil records, criminal records, driving records, real estate records, public record vendors, record retrievers, legislation and more."
• Blogs from the U.S. Government  /  Gov Gab
  Blogs by U.S. agencies and employees, highlighting government services and useful information.
• Budget of the United States Government
  Includes the proposed budget, analyses, historical information, and explanatory documents.
• CQ Press In Context
  Online articles relating to current issues, from Congressional Quarterly.
• C-Span
  Tons of information about current government happenings. Includes streaming audio and video, current news, links, and pages on various topics such as American Presidents.
• Department of Justice
  Department of the U.S. government which oversees law enforcement-related affairs. Includes the DEA, the FBI, the Office of the Attorney General, and the U.S. Marshalls, among others.
• FAQ About the U.S. Government
  Answers to common questions relating to the U.S. government, its departments and agencies.
• FCIC: Federal Citizen Information Center
  "For years, consumers have written to Pueblo, Colorado 81009 for timely, practical information they trust. Now you can get this great information in the format that best suits your needs -- in print, over the phone or on the web."
• Federal Government Resources on the Web
  The section of the University Michigan Documents Center dealing with the U.S. government. Organized by subject.
• FedSpending.org
  "This website, created by OMB Watch, is a free, searchable database of federal government spending. ... With over $12 trillion in federal spending, this more open and accessible tool for citizens to find out where federal money goes and who gets it is long overdue."
• Foreign Policy in Focus
  "A 'Think Tank Without Walls' connecting the research and action of more than 600 scholars, advocates, and activists seeking to make the United States a more responsible global partner."
• Forms.gov
  "The Forms Catalog provides citizens and businesses with a common access point to federal agency forms."
• Get It Done Online!
  "Access U.S. government services from your computer." Everything from 'Address Change' to 'ZIP Code Lookup'.
• GovBenefits.gov
  "The official benefits website of the U.S. government, with information on over 1,000 benefit and assistance programs."
• GovEngine.com
  Very nice directory to information about U.S. state and federal courts and governments.
• Governing.com
  "Policies, economics, and technology information and lots of new items pertaining to state and local government in the U.S. With complete searchable archives of Governing magazine.
• GPO Access
  Links to all sorts of information published by the U.S. Government Printing Office. Includes the Congressional Record, U.S. Code (laws), Code of Federal Regulations, Supreme Court decisions, and more. GPO Access: Catalog and GPO Access: Locator Service provide tools for finding information on this large site.
• Gross National Debt
  Information on the national debt, what it is, history over the last few decades, and 'clocks' showing the current amounts.
• National Archives and Records Administration
  All sorts of information and documents about American government and history.
• Presidents
  U.S. Presidents  American President American Presidency Project American President: An Online Reference Resource IPL POTUS (Presidents of the U.S.)  NARA: Presidential Libraries Presidential Inaugurations Presidential Timeline of the 20th Century President's Day  Presidents of the United States  The Presidents of the United States 
• State of the Union Addresses of the American Presidents
  "Search and analyze the the full-text of all State of the Union Addresses."
• States
  U.S. States  50 States About: U.S.A. Atlas: Maps and Geography Google: Regional: U.S. Infoplease: The Fifty States NetState StateMaster The US 50 U.S. State Facts USA.gov: State and Territorial Governments
• The Three Branches of Government
  A ThinkQuest project neatly explaining the relationship of the Executive, Legislative, and Judicial branches of the U.S. Government.
• United States Government Manual
  Search and read online or download the U.S. Government manual in text or .pdf (Adobe Acrobat) format. Includes manuals from 1995-96 on.
• United States Postal Service
  Information about shipping, tracking, services, local post offices, Post Office abbreviations, overseas shipping, and more.
• USA.gov  |  USASearch.gov
  Formerly known as "FirstGov", this site gives access local, state, and U.S. Government Agency websites. There is also a Reference Center for acronyms, calendars, maps, an A-Z federal agency list, and more.
• U.S. Supreme Court
  General information about the Court, Docket Information, downloadable files of the Court Schedule, Supreme Court Calendar, Court Rules, Opinions, and links to related sites.
• U.S. State Department
  Information about world countries, human rights, foreign policy, and a special Digital Diplomacy for Students section.
• Washington Budget Report.com
  "We have designed the Budget Report to provide you with plain English, nonpartisan analysis of Federal Budget developments. We sort through the reams of budget information released each day in Washington to provide you the information you need, when you need it. "
• The White House
  Information about the White House, the President, Vice Presidency, and the Executive Branch of the U.S. government.