What you think you know about Catholicism may not be the reality of Catholicism.I can't remember if I've referred y'all to Rafting the Tiber before or not.
Mark Windsor has a good, solid base of posts written about some of the questions that come up when people are looking into the Catholic Church ... whether they are contemplating swimming the Tiber (a.k.a. converting) or just taking a look inside the door to get the real scoop. He has some great information about Mary, the papacy, and more.
Even better, as his blog is fairly new, he is answering questions when they arise as in his most recent post which responds to a bevy of questions from a commenter about what the Church teaches. Mark is taking great care to be accurate, even going to the trouble of applying to the bishop for a Nihil Obstat on a particular post (don't know what that is? go read his latest post).
If you have a question I can't think of a better person in St. Blog's to ask.