Interesting study about Jews, religion and affiliation. The study states that one can be an active member of a religion and not really believe. There are also statistics comparing Christians, broken down by types-- evangelical, mainline protestant, Catholic as well as the unaffiliated and Jewish.
I'm skimming it now but thought I'd mention it.
One of the things I found interesting is that evangelicals are more apt to believe in miracles than Catholics. The social findings are interesting. Nothing too shocking.