Today I was browsing through Youtube, after feeling guilty about my pornography addiction. I found this channel:
http://www.youtube.com/user/innergold1000
I watched some of his videos, and they really hit the nail on the head.
http://www.youtube.com/watch?v=4tl7NAwOSgA
http://www.youtube.com/watch?v=zSWaXise7dE&NR=1
They explain how pornography addiction is linked to the brain.
An excellent resource for addicts out there.