Perseus Project translations
The Perseus Project, courtesy of the Dept. of Classics at Tufts, has a number of texts of interest to rhetoricians in its Greek and Roman collection, including Isocrates’ Antidosis and other speeches (Norlin), Plato’s Gorgias (Lamb), Aristotle’s Rhetoric (Freese), and Quintilian’s Institutes of Oratory (Butler). The interfaces for these are quite robust, allowing English translations to be viewed side by side with the original text or transliteration and full-text searching.