What impact has social media had on society and democracy?

These are the slides for a talk given to The Foundation of Science & Technology at the Royal Society, London on the 11 July 2012, as part of a wider panel discussion with Julian Huppert MP and Mike Lynch of Autonomy. The UK government's Data Communication Bill gave a backdrop and context to the evening. UPDATE An excellent summary of the evening's presentations and discussion is now available here [PDF]. You can listen to the full audio of the talk on the Foundation's website here as well as the presentations from Dr Julian Huppert MP and Dr Mike Lynch founder of Autonomy Corporation.