Forum Romanum
Outlines of Roman History: Beginnings of Rome: The Situation of Rome
The seven hills of Rome are shown on two maps, showing the hills and their relation to neighboring lands on the Italian peninsula. There is a brief discussion on the geographic importance of the hills.
Loyola University Chicago
De Imperatoribus Romanis: Rome and Its Seven Hills
This online map shows Rome, the seven hills, the roads that lead into Rome, and major buildings. Labeled in Latin, but easy to figure out.
Other
Maps of Ancient Rome
This ancient history site features maps of Rome from just the "seven hills" to the entire city plan with the areas labeled in Latin.