I would print them up and leave them in your work area... He will just laugh at you if you show them to him.
There are dozens on the www like that critcizing facebook.
You don't even need to leave this forum :
ElvenCat QuickSilver EeyoreNoMore
Read any of their threads and you will see how high risk that software is...
If your H's solution is to prowl facebook in SECRET while you clean his home and raise his children I would tell him that's not your idea of a healthy marriage and he has to recongnize your discomfort with him using facebook OR get OUT.
I didn't know he was using facebook to look up old friends... THAT is more than enough of a warning in my opiinion.