Shining Light On A $4 Billion Ad ‘Blind Spot’
As more companies promote their products and services through online ads, they could be missing what Marchex CEO and co-founder Peter Christothoulou calls “the $4 billion blind spot.” That’s the amount Christothoulou estimates marketers spent last year on mobile search ads that come with click-to-call buttons, which quickly connect consumers via voice contact with the company that placed the ad. There’s no easy way to determine which search