Think tanks are generally described as nonprofit institutions made up of experts who achieve change by offering policy prescriptions to lawmakers and by strategically marketing their ideas in the media. They have been part of the American political landscape since the turn of the 20th century, and there are now hundreds of such organizations across the country. This study was directed to state-based groups on the conservative side of the political spectrum that produce policy research in support of their political philosophy of a limited role for government, free enterprise in the marketplace, and greater individual liberty. The purpose was to examine the effectiveness of state-level, free-market think tanks, using some of the same criteria that have been applied to national think tanks; evaluate their use of nonprofit networks and the types of social capital they generate; and provide new insights into this relationship.