On the dust jacket of his 2007 book Cult of the Amateur, Andrew Keen writes: Our most valued cultural institutions – our professional newspapers, magazines, music, and movies – are being overtaken by an avalanche of amateur, user-generated free content. In today’s self-broadcasting culture, where amateurism is celebrated and anyone with an opinion, however ill informed, can publish a blog, post a video on YouTube, or change an entry on Wikipedia, the distinction between trained expert and uninformed amateur becomes dangerously blurred. When anonymous bloggers and videographers, unconstrained by professional standards or editorial filters, can alter public debate and manipulate public opinion, truth becomes a commodity to be bought, sold, packaged and reinvented.