Hartford Institute for Religion ResearchProvides information about various research projects in the sociological study of religion, including issues on women and religion, congregations, religion and the family, etc.
The Pluralism ProjectStudies and interprets the changing religious landscape of the US. Includes field research on religious diversity and interfaith relations that informs the development of key educational resources. Sponsored by Harvard University.
U.S. Religious Landscape SurveyConducted in 2007 and 2014, surveys more than 35,000 Americans from all 50 states about their religious affiliations, beliefs and practices, and social and political views.