This report is a collaborative effort based on the input and analysis of the following individuals. Paul Taylor, executive vice president, special projects of the Pew Research Center, provided editorial guidance for the entire report and wrote the Overview. Carroll Doherty, director of political research, provided editorial guidance for Chapters 1 and 2. Rich Morin, senior editor, wrote Chapters 1 and 2, with support from the political staff. Kim Parker, director of social trends research, oversaw the development of the survey questionnaire, co-wrote the overview and wrote Chapter 3. Greg Smith from the Pew Research Center’s Religion & Public Life Project provided data analysis, editorial guidance and number checking for the section dealing with trends in religious affiliation. Andrew Kohut, founding director of the Pew Research Center; Lee Rainie, director of the Pew Research Center’s Internet & American Life Project; Alan Cooperman, director of religion research; and Scott Keeter, director of survey research, provided editorial input for their areas of expertise. Several researchers contributed to data analysis, chart production, writing and number-checking.