Twitter announced the availability of tailored audiences; promoted tweets that are targeted at individuals based on the websites they have visited. Twitter has teamed up with ten ad partners These ad partners are well established advertising companies that already engage in things like retargeting and loyalty programs. The data for tailored suggestions is gathered entirely from the blue tweet buttons that are embedded into websites that want to make tweeting their content easier. Twitter tries to work out if you should follow somebody by comparing the websites their followers visit with the websites that you go to.”]