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American Institute of
Philanthropy
www.charitywatch.org
American Liberty Partnership
www.libertyunites.org
Better Business Bureau Wise Giving Alliance
www.give.org
Direct Marketing Association Mail Preference Service
www.the-dma.org/consumers/offmailinglist.html
Federal Trade Commission's National Do Not Call Registry
www.ftc.gov/donotcall
GuideStar
www.guidestar.org
Independent Sector
www.independentsector.org
Internet Non-Profit Center
www.nonprofits.org
IRS Search for Tax Exempt Organizations
www.irs.gov/plain/bus_info/eo/eosearch.html
National Association of
State Charity Officials
www.nasconet.org
National Center for
Charity Statistics
www.nccs.urban.org
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