Bob Hoffman has been writing about the rampant fraud in online advertising for a long time now. He and I even talked about it in an upcoming podcast. In this video from LinkedIn, all that information has been neatly packaged in a way that explains the issues clearly and succinctly.
If you look past the self-serving end of the video, it's one of the most intelligible take on the so-called "sub-prime data crisis" as cleverly named in the video.
My favourite quote of the lot? "Marketers would literally be better off flipping a coin" when referring to the accuracy of online advertising when targeting by gender. Telling.
If you do any online advertising or are thinking about it, this is a must-watch.