Jon Ronson has been working on a podcast for over a year that traces how one man changed the porn business, when he applied modern internet technology — keywords, search-term optimization — to porn. One big obvious consequence of this is that so much pornography is given away for free, people who make porn videos have a much harder time making a living. One way lots of them now supplement their income is by creating custom videos. (10 minutes)

Jon Ronson’s new Audible Original Series The Butterfly Effect will premiere at the end of July. You can pre-order it now.