The Robert Wood Johnson Foundation has awarded APPC $200,000 to begin work on a multi-phase project that seeks to advance knowledge about effective uses of health communication and disseminates its findings through a dynamic website. APPC scholars will begin by producing a series of reports that assess the strengths and limitations of the major theories that have been used to effect health-related learning and attitude and behavior change; summarize relevant literature on message tailoring, information processing, and other factors that influence learning, attitudes, and behaviors; identify unanswered questions and summarize what has and hasn’t been found in existing research on health behaviors; discuss the ways in which major media effects theories apply to health campaigns; and list meta-analyses that might yield additional insight into message effects in health campaigns. The reports, along with links to the cited research and to newly presented or published work, will be posted and regularly updated online.