Bibliotheca Augustana Very nice index of Latin literature. Many of the texts are onsite here and unique in the web. Also includes German, English, and Greek literature. Bibliotheca Latina From the University of Wisconsin.
Page is entirely in Latin.
A good sized collection of Latin texts. Unfortunately, all but Boethius' Consolatio Philosophiae are restricted to use by students at the University of Virginia. A collection of ancient and medieval Latin texts, but some gopher links are outdated. Pliny's Natural History, Frontinus, Vitruvius, Ptolemy's Geography. Latin Literature Massive table of Latin literature available on the 'Net in Latin and in translation.