Government requests for information on Twitter accounts increase by 40 per cent in the last 6 months of 2014, with Russia sending more than 100 requests.
Twitter chief executive says that the company "sucks at dealing with abuse and trolls on the platform, and we've sucked at it for years."
Indian police arrest a man suspected of operating the most influential pro-IS Twitter account, following a Channel 4 News investigation.
Mario Balotelli apologises over a post on social media which provoked claims of racism and anti-semitism. He could be facing an investigation by the Football Association.
Social networks must simplify terms and conditions, to ensure that their users are clear over how their personal data will be collected and used, MPs say.
Facebook faces criticism for failing to act over an online chat in which one of Lee Rigby's murderers discussed "killing a soldier" - but it is hardly the only route terrorists use to communicate.
Labour MP Emily Thornberry is not the first politician to drop herself in it on Twitter. Countless others have also been forced to repent after unburdening themselves on social media.
A new hashtag is taking off on Twitter, and for once it is not One Direction related. It is #daeshbags - and it fits into an online movement ridiculing the #IslamicState group.