Focus

Source

Link

Varies

Grants.gov

http://www.grants.gov

Aeuronautics,  Science, Space Ops.

NASA

http://nspires.nasaprs.com/external

Housing, Urban Development

HUD

http://portal.hud.gov

Education

U.S. Department of Education

http://www2.ed.gov/fund/landing.jhtml

Science

U.S. Department of Energy

http://science.doe.gov/grants/index.asp

Health, Human Services

U.S. Department of Health & Human Services

http://www.dhhs.gov/asfr/ogapa/aboutog/grantsnet.html

Justice

U.S. Department of Justice

http://www.justice.gov/10grants

Transportation Environmental Research

Transportation Environmental Research Program

http://www.fhwa.dot.gov/terp

All

Catalog of Federal Domestic Assistance

http://www.cfda.gov

Science

National Academy of Sciences

http://www.nasonline.org

Health, Human Services

National Institutes of Health

http://grants.nih.gov/grants/oer.htm

The Arts

National Endowment for the Arts

http://www.arts.gov/grants/index.html

Humanities

National Endowment for the Humanities

http://www.neh.gov/grants/grants.html

Small Business

U.S. Small Business Administration

http://www.sba.gov

Science, Technology

Science and Technology Directorate Solicitations Protocol

https://baa.st.dhs.gov

Disaster Preparedness, Security

U.S. Department of Homeland Security

http://www.dhs.gov/

Science, Technology

U.S. Environmental Protection Agency

http://www.epa.gov/epahome/grants.htm

Disease Control & Prevention

Centers for Disease Control & Prevention

http://www.cdc.gov/niosh/oep/grants.html

Community Focus

Polk County Community Betterment

http://www.polkcountyiowa.gov/supervisors/pages/
programs.aspx