Trolling.  We're all victims (and some of us perpetrators) of such internet activity.  And while there is a wide variation of severity on the scale of what would be considered to be trolling, it became part of the discourse in yesterday's campaign against cyber-bullying, titled 'Safer Internet Day.'  This expanded to an episode of Panorama, which managed to trace the location of infamous troll Nimrod Severn, and track the real man down for an 'ambush' interview.