Whilst I have been in the USA, I have been enjoying buying Newsweek. A couple of days ago I got the latest issue, which is devoted to 'Spirituality' and what Americans believe. You can get some of the info here. Some great stats and analysis. One that shows the difference with the UK and Europe is of 159 million people apparently practicing Christians, with 63% connected to organised churches. Interesting in light of where George Barna sees things moving in the USA. Blogs discussing this here.