Here is information from one of my and my husband's go to in the begining. 7 years ago there was not much in the way of information.
http://markchamberlainphd.blogspot.com/p/why-kick-porn-habit.html
EDIT: fixed link - Gabe
http://markchamberlainphd.blogspot.com/p/why-kick-porn-habit.html
EDIT: fixed link - Gabe