Links GuideStar Basic—simple search for users who want to verify a nonprofit's legitimacy, learn whether a contribution will be tax deductible, view a nonprofit's recent Forms 990, or find out more about its mission, programs, and finances. Thanks to the generosity of a number of foundations, GuideStar Basic is available at no charge to users. Just log in and start searching. The Special Operations Warrior Foundation (SOWF) provides college scholarship grants, based on need, along with financial aid and educational counseling to the children of Special Operations personnel who were killed in an operational mission or training accident.