Byzantium on the Internet - Paul Halsall
Explore Byzantium - Chris Ambrose
ΊδρυμαΣύλβιαςΙωάννου / Sylvia Ioannou Foundation
Orb: Late Antiquity in the Mediterranean
Archaeolink - includes select list of Byz-related sites with brief reviews - Rod Polasky
Hagiography Web Site 2 (texts in translation)
Byzantium 1200 - Explore Constantinople in 3d
The Byzantine Churches of Istanbul
Prosopographie der mittelbyzantinischen Zeit - Berlin-Brandenburgischen Akademie der Wissenschaften