Bibliotheca Augustana: Index of Latin literature. Navigation is in Latin: you can browse alphabetically or by century. Also includes German, English, and Greek literature

Easton Latin Online: Quizzes and teaching resources, audio Latin sources, links to online teaching materials, entry-level reading texts, pronunciation guides, and ways to contact and network with other Latin teachers

Perseus Project Latin Texts: With accompanying English translations and links to dictionaries, commentaries, grammars, and other tools