We sponsored the Prioritise me! Side-effects of online content delivery" workshop organised by the Knowledge 4 All Foundation (K4A). K4A is a distributed institute based in London, with two main streams of activities, on one side pioneering Machine Learning methods of pattern analysis, statistical modeling, and computational learning and on the other transform these into technologies for large scale applications in Open Education. The workshop focusses on the problem of bubbles and echo-chambers and new approaches to content prioritisation for on-line media.