“Tim Keller on the Disappearing Umbrella over Conservative Christians” by Trevin Wax – A great assessment on our shifting culture and evangelicals place within it.
The number of the devout people in the country is increasing, as well as the number of secular people. The big change is the erosion is in the middle. … You don’t so much see secularization as polarization, and what is really disappearing is the middle.
Similarly, see my sermon from around a year ago – Christian Living in a Post-Christendom America.