Social media and mobile devices have irrevocably changed the news landscape, and now members of the public are often at the scene of a news event before a reporter even hears of the story. Pictures and video posted to social media by eyewitnesses are often the first sign, but how can journalists and newsrooms reach these sources quickly, reliably and ethically?
Aine Kerr, managing editor, Storyful
Sam Dubberley, co-founder, Eyewitness Media Hub
Gavin Rees, director, Dart Centre Europe