QUOTE(SFTom @ Feb 12 2010, 01:58 PM)

I think that's a bad idea. I've always thought personal information like that should be shared on a need-to-know basis. You don't, in my opinion, need to broadcast your sexual orientation to people. If the subject becomes relevant in an important relationship, and the other person doesn't seem to know, that would be a good time to share it.
Ummmmmmmm... this is a tough one. On one hand, your private life is your business, and not anyone else's. You choose who you share what with. On the other hand, you would never tell a straight person not to broadcast their sexual orientation to people. I have a problem with that double standard.
If a straight person wants to put that they are interested in the opposite sex in their Facebook profile, or talks about the great person they met the other day, no one says they are broadcasting their sexual orientation. The same with mentioning to someone that you went out on a date, and with whom. That may not be relevant, it may not be an important relationship, but I see no problem with that... unless you know doing so will endanger your personal safety. Let's use some common sense.
However, I don't know that a "post" on Facebook is the best way. I do agree that you should tell your friends and family in person... or at least on the phone. If that's really uncomfortable, sometimes a letter or email to break the ice on the subject is a good way to do it. At least with the people most important to you. While for many people this won't be a big deal to, unfortunately we're not quite at the point where it isn't an issue for everyone. So a personal approach would be best.
As for everyone else... no need to post "I like MEN" in your status update on Facebook. Though I think it's perfectly acceptable to update your "interested in" section. But don't censor yourself. If you want to mention this great guy you met, or the hot UPS driver who flirted with you... LOL well, why not? Those casual acquaintances that don't know should figure it out real quick, without you running down the hallway in pumps yelling "I'm gay."