Executive Branch of the Federal Government
- Executive Office of the President (EOP)
- Department of Agriculture
- Agricultural Research Service
- Animal & Plant Health Inspection Service
- Cooperative State Research, Education, and Extension Service
- Economic Research Service
- Farm Service Agency
- Forest Service
- National Agricultural Library
- Natural Resources Conservation Service
- Research, Economics & Education
- Rural Development
- Department of Commerce
- Bureau of the Census
- Bureau of Economic Analysis (BEA)
- Bureau of Export Administration
- FEDWorld
- International Trade Administration (ITA)
- National Institute of Standards & Technology (NIST)
- National Marine Fisheries Service (NMFS)
- National Oceanic & Atmospheric Administration (NOAA)
- National Ocean Service
- National Technical Information Service (NTIS)
- National Telecommunications & Information Administration
- National Weather Service
- Patent and Trademark Office Database
- Department of Defense
- American Forces Press Service
- Air Force (USAF)
- Army (USA)
- Defense Contract and Audit Agency (DCAA)
- Defense Finance and Accounting Service (DFAS)
- Defense Information Systems Agency (DISA)
- Defense Intelligence Agency (DIA)
- Defense Logistics Agency (DLA)
- Defense Technical Information Center (DTIC)
- DefenseLINK Locator (GILS)
- Joint Chiefs of Staff (JCS)
- Marine Corps (USMC)
- National Guard
- National Security Agency (NSA)
- Navy (USN)
- Department of Education
- Educational Resources Information Center (ERIC) and Other Clearinghouses
- National Library of Education (NLE)
- Other Federal Government Internet Educational Resources
- Department of Energy
- Environment, Safety and Health (ES&H)
- Federal Energy Regulatory Commission
- Los Alamos National Laboratory
- Office of Science
- Southwestern Power Administration
- Department of Health and Human Services
- Administration for Children and Families
- Agency for Healthcare Research and Quality (AHCRQ)
- Centers for Disease Control and Prevention (CDC)
- Food and Drug Administration (FDA)
- National Institutes of Health (NIH)
- Department Homeland Security
- Bureau of Citizenship and Immigration Services
- Customs & Border Protection
- Coast Guard
- Federal Emergency Management Agency (FEMA)
- Federal Law Enforcement Training Center
- Secret Service
- Department of Housing and Urban Development
- Government National Mortgage Association (Ginnie Mae)
- Housing and Urban Development Reading Room
- Office of Healthy Homes and Lead Hazard Control
- Public and Indian Housing Agencies
- Department of the Interior
- Bureau of Indian Affairs
- Bureau of Land Management
- Bureau of Reclamation
- Fish and Wildlife Service
- Geological Survey
- Minerals Management Service
- National Park Service
- Office of Surface Mining
- Department of Justice
- Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF)
- Drug Enforcement Agency (DEA)
- Federal Bureau of Investigation (FBI)
- Federal Bureau of Prisons
- Office of Justice Programs (OJP)
- United States Marshals Service (USMS)
- Department of Labor
- Bureau of Labor Statistics (BLS)
- Mine Safety and Health Administration
- Occupational Safety & Health Administration (OSHA)
- Department of State
- Department of Transportation
- Bureau of Transportation Statistics
- Federal Aviation Administration (FAA)
- National Transportation Library (a digital library)
- Department of the Treasury
- Alcohol and Tobacco Tax and Trade Bureau (TTB)
- Bureau of Engraving and Printing
- Bureau of Public Debt
- Executive Office for Asset Forfeiture
- Financial Crimes Enforcement Network
- Financial Management Service (FMS)
- Internal Revenue Service (IRS)
- Office of the Comptroller of the Currency
- Office of Thrift Supervision (OTS)
- U.S. Mint
- Independent Agencies
- Advisory Council on Historic Preservation (ACHP)
- American Battle Monuments Commission
- Central Intelligence Agency (CIA)
- Commodity Futures Trading Commission (CFTC)
- Consumer Product Safety Commission (CPSC)
- Corporation for National Service
- Environmental Protection Agency (EPA)
- Equal Employment Opportunity Commission (EEOC)
- Farm Credit Administration (FCA)
- Federal Communications Commission (FCC)
- Federal Deposit Insurance Corporation (FDIC)
- Federal Election Commission (FEC)
- Federal Energy Regulatory Commission (FERC)
- Federal Labor Relations Authority (FLRA)
- Federal Maritime Commission
- Federal Reserve System
- Federal Retirement Thrift Investment Board (FRTIB)
- Federal Trade Commission (FTC)
- General Services Administration (GSA)
- Institute of Museum and Library Services (IMLS)
- International Boundary and Water Commission
- Broadcasting Board of Governors (BBG)
- Merit Systems Protection Board (MSPB)
- National Aeronautics and Space Administration (NASA)
- National Archives and Records Administration (NARA)
- National Capital Planning Commission (NCPC)
- National Commission on Libraries and Information Science (NCLIS)
- National Council on Disability
- National Credit Union Administration (NCUA)
- National Endowment for the Arts (NEA)
- National Endowment for the Humanities (NEH)
- National Indian Gaming Commission (NIGC)
- National Mediation Board (NMB)
- National Railroad Passenger Corporation (AMTRAK)
- National Science Foundation (NSF)
- National Transportation Safety Board (NTSB)
- Nuclear Regulatory Commission (NRC)
- US Nuclear Waste Technical Review Board (NWTRB)
- Occupational Safety and Health Administration (OSHA)
- Office of Federal Housing Enterprise Oversight (OFHEO)
- Office of Personnel Management (OPM)
- Office of Special Counsel (OSC)
- Overseas Private Investment Corporation (OPIC)
- Peace Corps
- Pension Benefit Guaranty Corporation
- Postal Rate Commission
- Railroad Retirement Board (RRB)
- Securities and Exchange Commission (SEC)
- Selective Service System (SSS)
- Small Business Administration (SBA)
- Social Security Administration (SSA)
- Tennessee Valley Authority (TVA)
- Thrift Savings Plan (TSP)
- United States Agency for International Development (USAID)
- United States Arms Control and Disarmament Agency (ACDA)
- United States International Trade Commission (USITC)
- Dataweb (Import/export data)
- United States Office of Government Ethics (OGE).
- United States Postal Service (USPS)
- United States Trade and Development Agency
- Voice of America (VOA)