One that I want to bring to your attention is that he could be having health problems, i.e. prostate problems which is a subject they do not want to talk about. They are men and their egos are shattered when they cannot perform sexually. Sex is the most important part of their relationship and they think that it is the most important part to their spouses as well. Instead of talking about their problem, they seem to think that going to these websites will boost their sexual drives and no one would know the wiser. We as wives need to convince them that sex is only part of our relationship - there is so much more.
Sexual addiction is a problem that is hard to stop without professional help.
If professionally treated and keeping God first, the problem can be overcome. Let me suggest something to you - let him know that God has blessed your family with this computer and it should be used for the building up of the Church and not used for things that are of Satan. God has blessed us all with new technologies and we need to be good stewards of them as well as all things that God has blessed us with. If your husband is truly a man of God, he will make every effort to communicate with you or get the help he needs. It shows you have a heart that is seeking to do the right thing.