We heard how Tom Daley got a load of abuse, then other Team GB members, but now we're hearing more and more about the abuse people get on Twitter. Next up is Blue Peter's Helen Skelton, who's also doing some Olympic TV work; she's quit Twitter over some horrendous trolling, while Kirstie Allsopp has a fight on her hands too. Does this mark the beginnings of a celebrity Twitter mass walkout, and will that bring Twitter crashing down? Read More >>