In some cases, the translations will be abridged versions of the ancient text. Howver, don't be put off from using this wonderful resource. Author A good collection of mainly Greek works put up by the University of Michigan. Classics List List of authors, mainly Greek Roman Perseus Wide range of Roman sources. Medieval Sourcebook Good for late antiquity, especially church history.
General databases Includes some relevant material.
Project Libellus Source material for all periods, including oral histories. Based in Canada. The writings of the Greek and Roman worlds were the topic of debate in antiquity as well as today. This contains documents on late antiquity and church history. Includes late antique, medieval and early modern works.