I really like Anne Jackson's post today - "Are you hooked? The Christian Designer Drug."
I think Anne's description of Christian culture is accurate, that we often treat religious activity as something that will inoculate us from the pain of loneliness or spiritual emptiness. It's one of the reasons I think church culture can be so extroverted.
Anne is the author of Mad Church Disease, a book I've linked to in my recommended reading sidebar. She recently endorsed my book too.