just a phenomenon embraced by the young—31% of all seniors are on Facebook.2 With growing engagement across demographics, social media networks offer new platforms of digital interaction at a scale that is hard to comprehend—313 million active Twitter users sending half a billion tweets and 1.9 billion Facebook accounts uploading 350 million photos every day. SnapChat has created some of the country's youngest billionaires. All these activities, driven by the public's desire to curate and share life experiences, provide new opportunities to observe and understand lived reality in greater detail and closer to real time than ever before. To read the full article, log in using your NHS OpenAthens details.