Resurgence is releasing (for free) a short book by Mark Driscoll called Porn-Again Christian. So far they have realeased the introduction, chapter 1, and chapter 2. Once all of the chapters have been posted they are going to make the whole book available in as a .pdf. Here is the first paragraph of the introduction:

You are part of a culture that spends more money each year on pornography than country music, rock music, jazz music, classical music, Broadway plays, and ballet combined. In Paul’s day, he accused some people of worshiping their stomachs as their god, and in our day it appears that our god has simply moved a short distance south.

Check it out here.