Libanius was a voluminous writer. His letters and orations fill volumes. Yet few have ever been translated into any modern language. A few that were have made their way onto my collection of the Fathers. A good selection now appears in the Loeb. Yet… how little that is, and how little of all that little is online!
Pleasingly an English translation of the lengthy Oration 11 on Antioch is linked to from the page. I wonder what its copyright status is?