Online Cheating Questions

My survey stirred a great response with many questions. Feel free to leave comments below to some of these questions:

I believe that any effort to rekindle old “friendships” or forge new ones online (as by any other means) should be shared, at least insofar to divulge it is happening, with a “significant other” — whether married or not. What say you?
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My husband and I are recovering from his internet cheating. He claims that he would never have started his online fling with an old school classmate if things were not already bad in our marriage. I wonder if he had not met this woman online, would he have eventually spoken to me about the issues in our marriage? I found out by figuring out his password and going in to his Facebook account. At first he said I was invading his privacy. Eventually, he defriended the woman and severed all contact with her, but still communicates with other former classmates. Should I be concerned that the pattern will repeat, or can I trust that now that he and I are communicating and working on our relationship, this will not happen again?
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How do you tell the difference between- “just friends” and something more? What should be the normal “internet” boundaries for someone in a committed relationship? Is it okay to check your spouses email, internet history, etc? Should committed couples share internet passwords? Does the other person ever understand the damage they cause? What if the other person tries to make friends with the univolved spouse?
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FINALLY!!!! There is NOTHING OUT there that deals with this!!!! That’s where we’ve been for 10+ years! I’ve noticed that my husband can’t make a commitment to anyone in person, men or women, me included, but online, whoa…look out he’s there for everybody!
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my husband found his mistress on an online dating site. when he left me (separated but still not divorced) i hooked up with a guy from online too (via facebook). it’s too easy to feel like it isnt really cheating bc that person isnt sitting there next to you, but its a short step to moving things to the real world and then developing an attachment that is very hard to break with that person. my husband is still struggling to let go of his mistress.