The Reign of Justinian, 527-565 - The Emperor responsible for the transition of the Empire from Eastern Roman to Byzantine. Lectures in Medieval History, by Lynn Harry Nelson, Emeritus Professor of Medieval History, The University of Kansas, Lawrence, Kansas. - http://www.vlib.us/medieval/lectures/justinian.html
Justinian, Theodora, and Procopius - Comprehensive site with biographies and sources of the legendary Byzantine Empress, Theodora, the Emperor Justinian, and their biographer, Procopius. - http://www.isidore-of-seville.com/justinian/1.html
Emperors of Byzantium - A chronological list of Emperors, from Constantine I (324-337 AD) to Constantine XI Dragases (1449-1453 AD). Biographies of several can by reached by following the hyperlinks. - http://fstav.50megs.com/emperors2.html