"When George Brock talks, in his excellent book, about the "disruption" of the net, the atomisation of news and opinion, he evokes echoes of a different era: an unruly world of vituperation, agitation, even revolution. But this time it may not be the melee of new voices that crowded the pages of centuries past. This time it's a higgledy-piggledy high-tech empowerment that politicians (and editors) can't control." Peter Preston, The Guardian