Association of Fundraising Professionals (AFP) is the primary professional association of fundraisers, offering training, publications, and other resources.
AFP Ethical Guidance for Fundraisers
Fundraising AI is "a fully independent collaborative that exists to understand and promote the development and use of Responsible and Beneficial Artificial Intelligence for Nonprofit Fundraising." Their website has lots of useful information for nonprofits using AI to help with their fundraising.
Nonprofit Sector Groups of Interest:
National Council of Nonprofits
Independent Sector — Focuses on the health of the social good sector and related public policy.
AMA—American Marketing Association
NTEN— Nonprofit Technology Enterprise Network
Tech Soup—Technology for nonprofits
BoardSource — Support for purpose-driven boards
Giving USA —Annual publication reporting on charitable giving in the US
National Center for Charitable Statistics
ASSP—Association of Advancement Services Professionals
APRA—Association of Professional Researchers for Advancement
CASE—Council for Advancement and Support of Education
NAIS—National Association of Independent Schools
AHP—Association for Healthcare Philanthropy
Informative Blogs:
An extensive List of nonprofit blogs!
Development Consulting Solutions Blog (by Robin Cabral—a Bonterra Fundraising and Engagement Coach)
Reflections on Generosity (by Chany Ockert—a Bonterra Fundraising and Engagement Coach)
Marc Pitman’s The Fundraising Coach Blog