The Battle of Adrianople
- Excerpt from the Yonge 1862 translation (History, XXXI.12-14), on the Roman defeat.
- http://www.fordham.edu/halsall/ancient/378adrianople.html

Forum Romanum: Ammianus Marcellinus
- Latin text of Res Gestae a Fine Corneli Taciti, as well as a list of related sites.
- http://www.forumromanum.org/literature/ammianus_bio.html

Histos: Ammianus Marcellinus on the Geography of the Pontus Euxinus
- Paper by Jan Willem Drijvers of the University of Groningen considering Marcellinus' digression on the Black Sea in the Res Gestae as a literary rather than reference piece.
- http://www.dur.ac.uk/Classics/histos/1998/drijvers.html

Ancient History Sourcebook: The Luxury of the Rich in Rome
- An excerpt from the Roman History XIV.16, from the Davis translation, in which Ammianus criticizes Rome as shallow and culturally empty.
- http://www.fordham.edu/halsall/ancient/ammianus-history14.html