I have produced a new section on the Romans in my history encyclopaedia:

http://www.spartacus.schoolnet.co.uk/Romans.htm

At the moment it contains 46 biographies and 26 individual topics. It will grow considerably over the next few months.

Another good source from the Romans is Schools Wikipedia:

http://schools-wikipedia.org/wp/r/Roman_Empire.htm

Teachers teaching the Romans to younger students might be interested in my Year 7 section
http://www.educationforum.co.uk/KS3_2/year7.htm