It's always ok to snoop on your boyfriend or anyone else in your life! Infact, I don't call it snooping, I just call it awareness. Especially since a spouse is a part of your life and you have a right to know about everything that is going on in your life. Apart from that, let's get real, noone snoops unless they have a reason to snoop and I say, If you've got a reason, you most definitely have a right to investigate. It's just like if you had a persistant headache or a realy bad toothache, you'd investigate: go see a doctor. Well, when you get those nagging pains regarding your man, don't just stand there, see what's causing them.
The only reason a large percentage of the guys here didn't advocate snooping is because they don't want to get caught!!