Databases and Other Resources
Includes a huge variety of texts and translations.
The Revised Regesta Regni Hierosolymitani Database
Includes translations, annotations, and bibliography.
The French Outre-Mer Project (Fordham)
The French of Outremer Project (Fordham University)
The Prosopography of the Byzantine world.
Includes information on seals, and a deep list of sources, with related bibliography, and other materials.