I've added a couple of options to the poll for the fence-sitters and Web 2.0 hat3rz ... of which I am one.
Missus uses Farcebook and has a twitter account, although she doesn't use Twitter and is mystified by one or two of the people she doesn't know who are 'following' her.
She spends hours on FB playing with a cyber pet and stalking her friends and random strangers in ***** Wars.
That's m.a.f.i.a ... odd thing to be in the swear box.