In November 2014 we launched the 5 live Hit List, a unique social media chart show. We work with “Cosmos”, a group of computer and social scientists from some of Britain’s top universities, to produce a top 40 list of the stories that are making waves online using sites including facebook, twitter, youtube and google. This means the agenda of the show is set by what people in the UK are doing online rather than by journalists and editors. We cover a vast range of stories including the most serious events of the week alongside some of the weird things that go viral on the internet. The programme comes to a climax with a full rundown of the top 40 just like in a traditional radio chart show. Our host is the broadcaster and journalist Emma Barnett. We are on most Sundays on BBC Radio 5 live from 1930 to 2200.