Internet History Sourcebooks Project
Fordham University: Ancient History Sourcebook: Accounts of Roman State Religion
This Fordham University site is a collection of quotes from noted scholars such as Cato, Cicero, Livy, and Plutarch on the subject of Roman state religion from 200BC to 250 AD
Franco Cavazzi
Roman Empire: Roman Religion
This site describes the Roman religion. It explains the gods and goddesses and their origins, prayer and sacrifice, offices of the state religion, festivals, and the beginning of Christianity.