All links of Research on Nonprofits

GuideStarGuideStar
American Institute of PhilanthropyAmerican Institute of Philanthropy
Charity NavigatorCharity Navigator
Capital Research Center (CRC)Capital Research Center (CRC)
Centre of Philanthropy and Nonprofit Studies at QUTCentre of Philanthropy and Nonprofit Studies at QUT
The Johns Hopkins Center for Civil Society StudiesThe Johns Hopkins Center for Civil Society Studies
Stanford Center for Philanthropy and Civil SocietyStanford Center for Philanthropy and Civil Society
Stanford Social Innovation ReviewStanford Social Innovation Review
The Bridgespan GroupThe Bridgespan Group
IRS - Charities & Non-ProfitsIRS - Charities & Non-Profits
ProPublica - Nonprofit ExplorerProPublica - Nonprofit Explorer
OpenSecrets - Organization ProfilesOpenSecrets - Organization Profiles
Better Business Bureau - For Charities and DonorsBetter Business Bureau - For Charities and Donors
Charity Commission for England and WalesCharity Commission for England and Wales

Research on Nonprofits related site: