A word of caution regarding facebook.
If privacy is important to you don't use the same nickname you use here, on Facebook.
And don't use the same photos you use here, on on facebook. Last week I found a name on facebook that looked familiar. I went to the site and wasn't sure it was the same person, I occasionaly see here, but then noticed one of his friends looked familiar and realized it was a provider from this forum. In the facebook case her real name was used with a benign photo from her showcase. From there I could go to the providers facebook site..... Then it's a domino effect. One leads to another.... I notified the member and today I see that both the member and the provider facebook sites are gone.
(However, facebook pages are never really gone, they are still there, but in a dormancy state, until re-activated)
If you have no qualms about being IDed then it's not a problem...