Hi all –
I just found a great new reference tool for the Catechism of the Catholic Church tied into the Scriptural Reference appendix. With it, you can type in a scripture citation (say, John 3:16), and it will show you the entire section or sections of the CCC that they occur.
Elsewhere on the site, you can find where particular Scripture passages occur in the lectionary (i.e., the Readings for Mass).
Give it a try. *Very *cool!