I've recently discovered a gold mine of great info that I thought I would pass on. Aggie Catholics, a service of St. Mary's Catholic Center at Texas A&M University, is a great blog. They have a fantastic Question & Answer section dedicated to the questions they have received from the ordinary Catholic. The list is extensive and the questions people have asked are answered in a knowledgeable and compassionate way. You'll probably learn a lot by just browsing through to take a look.