Create a fake facebook account that you use JUST for your hobby friends. Link it to your fake email address which I'm sure you already have. Then add as many friends as you want - just don't put any personal info on your account.
I have some hobby friends on facebook, but I won't add just anyone. Just like adding my swinger friends. My family sees what I have on my wall/page, and I have to be careful.
I had a very good friend on my FB / myspace for a bit....although I wasn't as good at keeping up with the MS acct....
But this old friend/ one time client.....well, lets just say he likes to share what he's been "getting into".....
So, for me - considering my kids are on my facebook....my friends' kids' are on my facebook (you can never have too many eyes looking out....it takes a village), Real Life job co-workers and more.....I chose to not keep him as a friend, and he was cool with it.
I have A provider as an FB friend, and we really are REAL life friends. I know, without a doubt - that we would never compromise one another - AND the way we are on FB is no where close to how we are or the things we have said on the boards, in chat or in person in the hobby life. LOL
ive had someone send me requests to my personal page and to be honest it freaked me out big time!! i have my whole family and family pics on my page so it was just too personal for me to accept. i even had some dumb ass send a request to my mom!!