Internet History Sourcebooks Project
Fordham University: Byzantine Studies: Byzantine Studies on the Internet
At this site from Fordham University you can access a wealth of information on the Byzantine Empire, from journal articles, to photo galleries, to downloadable software.
Other
Lectures in Medieval History: The Reign of Justinian, 527 565
Read a brief overview of the reign of Justinian I, his decisions about reuniting the Roman Empire, and the beginning of the Byzantium Empire. Two maps show the Mediterranean world in 565 and 600.