Other Useful pages:

 
greatbuildings.com

 

-More indepth information on the arch itself

 

 

Arch of Constantine
Triumphal arch celebrating the victory of Constantine I over Maxentius, 312 CE

 

-A great resource of information on many aspects of the Arch

 

 

Arch of Constantine

 

-Information on the Arch of Constantine, and other great roman buildings

 

Arch of Constantine - History for Kids!

 

-Full of interesting Historical facts on the Arch. It may sa History for Kids, but there is a lot of good information there.

 

Answers.com

 

-Some good info. Plus it has info and links from/to Wikipedia.com