A number of very good questions and answers on this site refer to specifically Catholic doctrine or terminology. I've been one to ask for clarification on these terms at times, however I think it's clear that asking for clarification every time I see a Catholic term I'm not familiar with will drag this site down rather quickly (as well as make me look like I have nothing better to do than ask the same type of question repeatedly).
Can someone (hopefully a Catholic!) recommend a good resource (preferably online) that explains common Catholic terminology in an accurate and respectful manner, to someone from a non-Catholic background?
If we get some good answers, I'll probably suggest this question for site FAQ inclusion.