While Jim's Introduction to Romans is the ultimate guide for quizzing this year, it can be useful to get other perspectives. Bible.Org has up a good outline and mini-commentary on Romans that quizzers (and parents) may wish to bookmark for their own study. It gives some good historical background, provides a good outline of the book, and helps deepen one's understanding of what is being said.
The WWW can be a dangerous place, but it can also be a goldmine for expanding your understanding of God and His Word.