I don't get networking sites really… I have a Bebo Page, i know, you don't have to tell me, but i only use that to post pic's of gig's, events, etc. that i go and see/do, so that people can go have a look… But i don't update it once a week or post my mood or stupid sh!t like that!!
Forums are a much better way,i find, to communicate online. Direct, “to the point” (thread in this case) correspondence on topics i find interesting… Without all the “faffing” about!!