Association of Fundraising Professionals
Formerly the National Society of Fund Raising Executives, this site provides information on the benefits of membership and educational activities.
Association of Professional Researchers for Advancement
Provides information on a number of prospect researching activities.
Grant Professionals Association
This nonprofit membership association builds and supports an international community of grant professionals committed to serving the greater public good by practicing the highest ethical and professional standards.
Michigan Nonprofit Association
One stop resource for nonprofit organizations in Michigan.
Connecticut Community Nonprofit Alliance
One stop resource for nonprofit organizations in Connecticut.
Practical books for nonprofit organizations. See their Free Resources page for a number of articles regarding nonprofit management.
Philanthropy News Digest
Published by The Foundation Center, this is a great resources to find current request for proposals announced by foundations and corporations as well as other resources.