The debate whether or not to Google potential lovers is a tricky one, but the truth is, there's no harm in it. Finding friends, acquaintances, or even strangers online is a simple and discreet way to learn a little bit — or a whole lot! — about them. You can brush up on their online reputation and verify their stories (hey, hiring managers do it, why can't you?) or simply see what they are into. There are plenty of people who keep their social network accounts private, but you can always find something. Looking for more information on your sister's new boyfriend, a blind date or co-worker? Here are some surefire tips to strike Google gold.