Guidestar PremiumSearchable directory that provides detailed information on more than 850,000 nonprofit (501) organizations. Profiles cover mission and programs, financials, leaders, and most importantly, full text via PDF of the charity's IRS 990 filing from 1998 forward in most cases. Form 990 provides information on revenues, expenses, programs, activities, executive salaries and board members. The database contains significant free content. Access to some free content requires registration. Additional premium content is available at the ILR Library. Please ask for assistance at the ILR Reference Desk.