beta.sam.gov has replaced CFDA which "provided a full listing of all Federal programs available to State and local governments...; domestic public, quasi-public, and private profit and nonprofit organizations and institutions; specialized groups; and individuals."
the official daily publication for rules, proposed rules, and notices of Federal agencies and organizations, as well as executive orders and other presidential documents.
the Foundation Center is a national nonprofit service organization recognized as the nation’s leading authority on organized philanthropy, connecting nonprofits and the grantmakers supporting them to tools they can use and information they can trust.