The internet has revolutionized a plethora of pastimes: the way people communicate, find dates, commit crimes, you name it. But the business of selling stuff and of building brands continues to see one of the most radical transformations. At the cutting edge is the viral campaign; the short video clip, game, widget or ad that is so compelling much of an advertiser’s work is done for them when their prospective customers forward it to their contacts quickly building up an audience of…
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