The Grantsmanship Center: Search for private foundations by state. Provides general funding information, contact information, and links to organization websites.
Philanthropy News Digest (PND): A free service of the Foundation Center, PND publishes a weekly roundup of Requests for Proposals (RFPs) from private grantmaking organizations. You can also search for RFPs by subject or keyword.
Topic- and discipline-specific grants databases:
H-Net: Tracks and lists Humanities and Social Sciences funding announcements.
NYFA Source: A national directory of awards, services, and publications for artists.
WomenArts: Provides information about grants and other opportunities for women artists and allies.