Financial contributions by American corporations that are designed to influence domestic or foreign policies are discussed. After identifying ways that business corporations can influence either general policy or particular decisions, a brief history of corporate philanthrophy in the United States and financial support for public policy purposes is presented. Public policy giving includes support for organizations, movements, and individuals seeking to influence government policies, mainly by producing and disseminating studies, ideas, facts, and recommendations for academic, business, public policy, and other leaders. Six policy guidelines are included to help corporations determine which public policy groups share their political philosophy, and what the relation between donor and recipient should be. To help judge which groups are performing most effectively, criteria are suggested that concern: clear definitions of purposes and programs, the recipients' reputation, management capabilities, present or potential sound financial base, and the recipients' impact on public policy. Sources of information on public policy organizations are described, and profiles of the following consumer organizations are included: Consumer Alert, Center for Auto Safety, and American Council on Science and Health. (SW)