A new study by eye-tracking outfit EyeTrackShop illustrated Facebook’s struggle to monetize its mobile ads without diminishing its users’ experience.

EyeTrackShop tested ads with different placement surrounded by identical content on a desktop, an iPhone, and an iPad, and it found that users with iPhones (and, by extension, other smartphones) were the least likely to see ads on Facebook, with only a 3 percent to 13 percent chance of being seen if they were located “below the fold.” Read the rest at AllFacebook.

 Eye Tracking - Facebook Users Attention Fixation Order Across Platforms