Patrologia Graeca (ed. Migne)

The standard collection of Greek Christian texts, in 161 volumes. Edited in the late 19th century by Migne. These are not critical editions. http://graeca.patristica.net/ http://www.documentacatholicaomnia.eu/a_1010_Conspectus_Omnium_Rerum_Alphabeticus_Littera_A.html

ChurchRodent: Rich Tatum’s Glossary of Christian History

This little hypertext encyclopedia, while not a work of rigorous scholarship, is a lot of fun and fully searchable. ChurchRodent is a product of the site author’s Church History class project for which he wrote a paragraph on every index entry for Bruce Shelley’s Christian History in Plain Language.