Action Without Borders (Idealist)
Council on Foundations
Direct Marketing Association (to remove name from mailing lists of DMA members)
Evangelical Council for Financial Accountability
Foundation Center
Guidestar - IRS tax forms on database
Helping.org - on-line data, donations
Impact Online - Volunteer Match
Independent Sector
InterAction
Minnesota Charities Review Council
National Association of Attorneys General
National Center for Nonprofit Boards
National Committee on Planned Giving
Philanthropy Roundtable
Points of Light
Volunteer Match
Volunteering (see Points of Light and Impact Online)