Afpnet AFP has been the standard-bearer for professionalism in fundraising. AFP
Charity Watch a  nationally prominent charity watchdog service whose purpose is to help donors make informed giving decisions. American Institute of Philanthropy
Give reports on nationally soliciting charitable organizations that are the subject of donor inquiries. - BBB Wise Giving Alliance
Guide Star  gathers and distributes data on more than 850,000 IRS-recognized nonprofits.
Independent Sector  a diverse collection of more than one million charitable, educational, religious, health and social welfare organizations.