Guidestar's mission is to revolutionize philanthropy and non profit practice by providing information that advances transparency, enables users to make better decisions, and encourages charitable giving. Guidestar does that by encouraging non profits to share information about their organizations openly and completely. Guidestar believes that the best possible decisions are made when donors, funders, researchers, educators, professional service providers, governing agencies, and the media use quality information that Guidestar provides. You can find their site here.

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