Catholic Pages ForumA message board which allows you to ask and answer questions about the Catholic Faith and a chance to get to know some (and become one) of the great regular contributors (brought to you by Catholic-Pages.com).
CatholiCity ChatA fully moderated chat area that is suitable for most browsers. This is one of the most popular Catholic chat sites on the web.
CatholiCity Cross TalkCatholiCity offers a number of fully supervised email discussion lists on a variety of general and specific topics.
CIN Mailing ListsDozens of email discussion groups on all kinds of topics: CIN Main for general Catholic discussion. Some lists more active then others.