I think a glossary of guitar terms would be way better than an FAQ. When i got started, my biggest problem was remembering terms. I would forget and have to use the search to look up trussrod stuff and never find it cuz i forgot what it was called. And i remember readeing about an AANJ somewhere and thinking "what the heck is that!?" So I think a glossary is a good idea. FAQ? Won't hurt I suppose.
-RAF