I am part of the facebook group for my state's poly group. i was a bit wary joining because while i'm out to a lot of people - i don't want to risk my professional life.
However its a closed/private group - nothing shows up on my wall so that's nice. and i'm mainly in it for the knowledge of when the next local meet is happening, because that's always fun to go to.
If i want to post, i come here. [especially since my ex-best friend, who is definitely, without a doubt, 100% monogamous - decided to join the group when my fDP accidentally added the groups leader as a friend-who's name is the same as the group. absolutely ropable. i've since blocked her, but she's already tried to ruin me financially in the past, not risking her having more 'ammo'