Online advertising has grown rapidly in recent years, with US revenues hitting $59.6bn in 2015, according to eMarketer, compared with the $68.9bn generated by television. However, as online advertising has grown, so have concerns about viewer measurement, fraud and the placement of campaigns on sites that could be harmful to brands. This week the Financial Times revealed that an Islamist extremist had used a service provided by Google to sell advertising space on his website to Citigroup, IBM and Microsoft, where their campaigns ran alongside images of beheadings.
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