• Christian Classics Ethereal Library
• Guide to Christian Literature on the Internet
• Guide to Early Church Documents
• Digital Karl Barth Library
• Works of Jonathan Edwards Online (Yale University)
• Project Gutenberg
• Electronic Text Center (University of Virginia)
• Net Library
• Google Books

Individual Titles

• The Codex Sinaiticus Project
• Oxford Encyclopedia of the Reformation
• Encyclopaedia of Judaism Online
• Encyclopedia of Social Work