Thanks Fly. I've heard of people being traced via facebook so will check that out.
BT online service I can't say I have come across that, so that's another avenue.
I reckon with this internet we have these days it's not maybe as 'easy' to lose yourself.
Maybe that's how some internet Trolls have been found out as well - purely by being tracked down and so turning the tables so to speak.
This internet Malarkey is one mighty fine Web!!
Big Brother and all that