Tocs-in is a bibliographic index to articles in Classics Journals published since 1992. It is a free site provided by the University of Toronto

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The Thesaurus Linguae Graecae [TLG] Digital Library now contains virtually all Greek texts surviving from the period between Homer (8th century B.C.) and A.D. 600 and the majority of surviving works up the fall of Byzantium in A.D. 1453..Its’ goal is to create a comprehensive digital library of Greek literature from antiquity to the present era.

The Patrologia Latina Database is an electronic version of the first edition of Jacques-Paul Migne’s Patrologia Latina, published between 1844 and 1855, and the four volumes of indexes published between 1862 and 1865. The Patrologia Latina comprises the works of the Church Fathers from Tertullian in 200 AD to the death of Pope Innocent III in 1216.

This is a full-text collection of critical editions (frequently with translations) of a large number of 16th and 17th century texts. It is created and maintained by Dana F. Sutton, University of California, Irvine.