The Patrologia Latina comprises the works of the Church Fathers from Tertullian in 200 AD to the death of Pope Innocent III in 1216. Contains the complete Patrologia Latina.
The Classics Collection of the (now) broader Perseus Project contains extensive and diverse resources including primary and secondary texts, site plans, digital images, and maps related to the Greek and Roman world.
A peer-reviewed, open-access journal published by the Public Library of Science (PLoS), a non-profit organization committed to making scientific and medical literature a public resource.
