I found this rather interesting from the exerpts they post on the Atlantic Monthly site:
"In Red America people eat meatloaf, dine at Crackerbarrel, shop at Walmart, attend Church and participate in Church-related activities regularly, live near family, obtain minimal educations, hold conservative views on issues like homosexuality and abortion, and enjoy a close-knit community life. "
While lots of this is correct, the "minimal educations" is factually incorrect. Christians (as a group in America), for example, are slightly better educated than the national average.