Remember Ello? Not until you just read that, I bet. The ‘Facebook killer’ social network was ad-free, and a bit of fun for a week or so. Various brands latched onto it as a new medium to share themselves with the world, with its stripped-down interface and stark indifference to social as we know it. A big selling point for Ello was ads, where none existed. According to the founders, none would, either. Until today, with the rollout of video and music on Ello.