Pew Forum releases large study on American religion

The massive study examines almost every aspect of contemporary American religion.  Over 35,000 people were interviewed. 

Key findings:  More than 40% of respondents had changed religious traditions in their lifetime.  Protestants make up about 51% of the total.  The number of persons who now identify themselves as "unaffiliated" is 16%, a new high.  Catholics have lost a large number of adherents, but their over-all percentage of the population has remained stable because of immigration.