Facebook's Gaydar: is it accurate?
The initial test of Gaydar correctly predicted that 10 of the researchers' friends - who weren't "out" on Facebook - were gay. That's a pretty decent success rate, but a tiny, tiny sample size. Only 33 gay men out 1600 total can't possibly be reflective of the entire population. According to Wikipedia, 4% of voters in the last US election self-identified as gay, lesbian, or bisexual. Assuming that those numbers are pretty conservative, only 2% of the people in Gaydar's initial sample were gay. I'm not convinced it's really time to start panicking that you could be inadvertently outed based on your Facebook friend list.