Paula Todd, will take you into the dark world of “extreme mean” to explore the real stories behind Amanda Todd’s ‘cyberbullying’ suicide, the hidden toll on ‘Friday’ singer Rebecca Black as the ‘most hated person on the Internet,’ and the huge career and psychological costs to adults around the world whose lives have been torn apart by online hostility and aggression. We’ve heard the explanation: anonymity, anonymity, anonymity. But lots of people do wonderful things when no one’s looking. So, who instead is using digital camouflage to demean, disturb and destroy? The answers — there are more than one — will surprise you.