On Facebook I was trying to get to an event and clicked “see all” on the friend finder instead of the events area. Then something caught my eye, every friend Facebook was suggesting for me was female, and most I didn’t know. (Update, there’s one guy in there.) The first part of that is interesting — perhaps they’re testing some optimization in the friend-adder with the assumption that since I’m a straight male I’m more likely to add girls than guys, but if so that seems a little skeezy.