I love Facebook. Really I do. So don't get me wrong, but using Facebook to build your business without the proper foundational internet tools, is preaching to the choir.
What? Facebook is essentially a gated community. Unless you are already "in", you are not going to see much in that neighborhood. The internet is "open", so how does someone find you there? You already know the answer.
FOLLOW ONE SIMPLE RULE: If it is interesting enough for Facebook, it should be on your blog first.