wife of an online pornography addict

My husband is an online pornography addict and he has lied to me yet
again of what lengths he has gone thru to do what he does so I won't
find out about it? I know the right thing to do is to be supportive and
listen to his confession but what I really want to do is hurt him like
he has hurt me. I know this is a
growing problem and up to this
point I've been pretty ashamed to mention it to people because I feel
they will judge him as a person because of this even thought this
addiction does not define my husband as a person. I have been able to
tell some close friends and go into detail with one particular friend
who is going thru the same thing but like me she is also in every day
denial with her husband and doesn't know what to do.I need advise.....