Here you go...
http://www.moralityinmedia.org/index.htm?pornsEffects.htm
http://www.forerunner.com/forerunner/X0388_Effects_of_Pornograp.html
http://www.moralityinmedia.org/index.htm?pornsEffects/raypierce.htm
It's a society shredder. Like illegal immigration, abortion, gun-control, drugs, murder, lying, ...
WOW look at all those web sites, thanks to porn all those people have something to do with their time.