Federal Agencies

Advanced Research Projects Agency (ARPA)

Agency for International Development (AID)

Agriculture, US Department of (USDA)
  Western Region Sustainable Agriculture Research & Education (SARE) Programs

Air Force

Army
  U.S. Army Medical Research and Materiel Command (USAMRMC)
  Congressionally Directed Medical Research Programs (CDMRP)

Battelle Pacific Northwest Laboratory

Centers for Disease Control

Central Intelligence Agency (CIA)

Commerce, US Department of

Defense Reutilization and Marketing Service (surplus property)

Defenselink - links to Secretary of Defense, Joint Chiefs, Army, Navy, Air Force, Marine Corps, Coast Guard, Reserve, National Guard

DoD/SBIR

Economic Development Administration

Education, US Department of
  e-Grants

E-Gov - official web site of the President's E-Government Initiatives

Energy, US Department of
  Office of Energy Research
  Office of Science Education & Technical Information

Environmental Protection Agency

Federal Acquisition Jumpstation - links to other servers

Federal Emergency Management Agency

FedWorld Information Network

Firstgov.gov - U.S. Government's Official Web Portal

Fish and Wildlife Service

Food and Drug Administration
  Human Subjects Regulations

Fulbright Scholar Program

Geological Survey, US

GrantsNet  - DHHS listing of grants awarded

Health and Human Services, US Department of

Health Resources and Services Administration

House of Representatives
  Internet Law Library, Code of Federal Regulations

Housing and Urban Development, US Department of

Interior, US Department of

Justice, US Department of

Labor, US Department of

Library of Congress

Minority Business Development Agency

National Aeronautics and Space Administration (NASA)
  Small Business Innovation Research (SBIR) and Technology Transfer (STTR) Programs

National Endowment of the Arts

National Historical Publications and Records Commission

National Institute of Standards and Technology (NIST)

National Institutes of Health
  iEdison
  NIH eRA Commons

National Marine Fisheries Service

National Oceanic and Atmospheric Administration (NOAA)

National Science Foundation (NSF)
  FastLane

National Technology Transfer Center

National Telecommunications and Information Administration

Navy
  Office of Naval Research
  ONR Contracts & Grants

Nuclear Regulatory Commission

Patent and Trademark Office

Postal Service

Securities and Exchange Commission

Senate, U.S.

Small Business Administration

Smithsonian Institution

Social Security Administration

State Department, U.S.

Transportation, US Department of

Treasury, US Department of

White House
  Fellowships