The focus of this site is "to preserve quantitative data on American religion" while increasing and enhancing the use of such data. The archive includes data about churches, membership, individuals, congregations, and denominations.
Provides a selective guide to Islamic resources on the Web. It limits links to primary sources (such as sacred texts, official documents, and statements; or materials by religious groups) and scholarly secondary sources.
This site systematizes searches of congregations that practice outreach to other faiths. Among its features is Religious Diversity News, compiled full-text articles that are searchable by keyword and date, and that contain links to primary sources providing opportunity for further research.