US national coalition of nonprofit organizations that use the mail to solicit members, raise funds, and provide educational materials. The Alliance represents members to government.

Coalition of the American charitable organizations that provides workplace charitable giving campaigns. Includes a list of charities and information about workplace giving.

Los Angeles, California institute which provides consulting, information and training. Publications, frequently asked questions, description of services.

Donor information service profiling Minnesota charitable organizations. Standards for nonprofits, database, frequently asked questions, giving guide.

Develops and manages a comprehensive, community based, coordinated system of care for abused, neglected and abandoned children and their families.

Tax-related guidance for nonprofit organizations.

NCDA is a national nonprofit organization representing over 500 communities that work with federal housing and community development programs

Research and advocacy organization dedicated to the American nonprofit sector. Includes organizational information, current initiatives and downloadable publications.