This man might be gay. I can't be sure.
The Boston Globe reports on an experiment, (or SEXperiment, har har) where some MIT students tried to develop gaydar for the social networking world.
In summary, a study mixed in with some hyperbole and a computer program of some sort, took a look at a person's Facebook friends, and with a pretty good deal of accuracy, were able to tell if the person was gay or straight.
OKAY - is this so shocking? I mean, if a guy has 200 guy friends, many of the profile pictures showcasing pecs and abs, surrounded by throngs of other men, an occasional circuit party, and the column "Interested in: Men" is clearly checked... I would say that's a safe assumption.
The lesson here is: If you're gay, you probably know it. But if you're not, and you have hundreds of gay facebook friends, you're gay.