Every now and then sanity prevails. Usually the media portrays porn as a bad thing. This study refutes almost every negative stereotype you've ever heard about porn. For instance, fewer than 2% of porn users ever become addicted in any way to porn. The media would have us believe that porn addiction (and more generally internet addiction) is a common and growing problem. That's all BS and most of us knew it, but now there's a study that backs us up!
So is "Rule 34" true — that if you can imagine it, there's porn of it?
When we first started, Rule 34 was almost a guiding idea. The Internet has every kind of imaginable porn; searches are going to reflect immense diversity. We quickly realized that [the data] didn't really support that.
Even though you can find an instance of any kind of porn you can imagine, people search for and spend money and time on 20 sexual interests, which account for 80% of all porn. The top five are youth, gays, [sexy mothers], breasts and cheating wives.
LINK: http://healthland.time.com/2011/05/19/mind-reading-the-researchers-who-analyzed-all-the-porn-on-the-internet/