Catholic Answers
http://www.catholic.com/
Catholic Apologetics
http://www.cwo.com/~pentrack/catholic/apolo.html
Catholic Insight
http://www.gate.net/~catholic/
Corunum Catholic Apologetics
http://www.cin.org/users/jgallegos/contents.htm
Defenders of the Faith
http://www.geocities.com/Athens/Forum/3975/
Faith of Our Fathers
http://www.black-hole.com/users/maloney/
Gospel Truth
http://www.flash.net/~truth/
To Tell You the Whole Truth
http://www.scborromeo.org/truth/truth.htm