Loyola University Chicago
De Imperatoribus Romanis: Alphabetical Imperial Index
This is an alphabetized, comprehensive list of Roman emperors and their families, each connected to a linked site.
Other
United Nations of Roma Victrix: Index of Roman Laws
An alphabetical list of Roman laws from the earliest times of the Twelve Tables in 451 BC to the end of the Roman Empire. The names for the laws are given in Latin.