Back on Oct. 27, 1994, Wired (or, as it was then known, Hotwired) claims to have given birth to the web's first banner ad. 20 years on and the web is littered with them, to the point where banner blindness has become a real thing. But how well do you really know your banner ads? Boonstra McDonald has created a site where you can learn a bit more about your favourite flashing friends. And it turns out large rectangle, square button, pop-under and co. have got quite interesting back stories.