Pushing for ‘Viewable’ Ads Can Lead To More Non-Human ‘Bot’ Viewers – CMO Today – WSJ

“This isn’t a big issue when marketers buy ads directly from top Web publishers. But ad exchanges, where thousands of smaller publishers can sell ad space, are another matter.” Read the WSJ article here:  Pushing for ‘Viewable’ Ads Can Lead To More Non-Human ‘Bot’ Viewers – CMO Today – WSJ.