Temple University led a six-university effort that built a comprehensive public policy database for Pennsylvania, modeled on the national Policy Agendas Project created by Frank Baumgartner and Bryan Jones (1993). The Pennsylvania database (www.temple.edu/papolicy) enables users to integrate data from all three branches of government and the news media organized into 20 major and 249 minor policy topics since 1979. This article discusses the value of these data, their potential uses in state policy research, and the lessons learned over the four years invested in building the database. Our hope is that interested readers might undertake similar projects in their states to create a standardized national network of state policy databases.