Texts
Early Church Fathers (Roger Pearse)
A Web library of out-of-copyright translations of Early Christian and Late Antique pagan authors not found elsewhere. The site author (see also his Tertullian website) does an exceptional job with formatting and includes volume introductions, notes, and also additional material for select authors.
Early Church Fathers (Wheaton)
An archive containing all volumes (less indices) of the Ante-Nicene Fathers (ANF) and Nicene and Post-Nicene Fathers (NPNF) in searchable format. All works can be downloaded as either text files or Windows help files.
EWTN Patristics Library
Another site from which ANF and NPNF may be downloaded. Prefatory notes indicate that EWTN has corrected the texts; they may be more accurate than those posted to other sites.
Guide to Early Church Documents
An updated version of the UPenn guide to early Christian texts, primarily in the UPenn archives, and other related resources.
Historic Documents of the Church
A standard list of links both to a moderate number of early Christian texts and to sites with more comprehensive collections.
Internet Medieval Sourcebook
The three primary divisions of the Sourcebook are (1) the Selected Sources page which presents a selection of primary and secondary texts chronologically and topically, intended to be a student resource; (2) a Full Text Sources page which groups all archived primary texts by type and period; and (3) Saints’ Lives page devoted to hagiographical texts and resources.
New Advent: Fathers of the Church
This archive also has e-texts of ANF and NPNF
Patrologia Graecae
J. P. Migne’s exhaustive collection of Greek texts from the Patristic period.
Road of Faith Digital Patrology
This is an exciting new site with Migne’s Greek texts of major Patristic thinkers. You can also use Google translator to help with the page translations.
St. Pachomius Library
This site began as an edited version of The Ecole Initiative’s documents page, but over time is developing into “A First Draft for a Living Encyclopædia of Orthodox Christianity.”
The Patristics Master List (Monachos.net)
A similar resource, but including a large number of locally hosted texts.
Pelagius: Life and Letter to Demetria
Thesaurus Linguae Graecae
A huge project to provide full Greek text books from Antiquity.