Internet History Sourcebooks Project
Fordham University: Medieval Sourcebook: Einhard: The Life of Charlemagne
Has the complete text of the Life of Charlemagne, which is the only first person account on Charlemagne available to historians. Contains 33 chapters which includes every detail of Charlemagne's life that you could possibly imagine.
Then Again
Then Again: Web Chron: The Germanic Tribes
Gives information on the main Germanic tribes of the third and fourth centuries: the Franks, Ostrogoths, Visigoths, Burgundians, Vandals and Lombards.
Other
The History of Italy
This site provides a detailed history of the Italians and their role in European history.