On this particular page of the Washington Times web site you can watch a very interesting video clip (less than 3 minutes) featuring Julia Duin talking about her new book, Quitting Church: Why the Faithful Are Fleeing and What to Do About It.
Even in this short clip, Duin has some penetrating things to say about the "dumbing-down" character of the seeker-friendly church movement and how "juvenile" sermons just aren't relevant, challenging or helpful enough to keep people from eventually walking out the doors.