NEW YORK: With 320 million users including celebrities such as Harry Styles, Katy Perry and Justin Bieber on its platform, the micro-blogging site Twitter on Monday wrote a 140-character thank you note to its users as it celebrated its 10th anniversary. Twitter users are creating 500 million tweets per day and 200 billion tweets every year. "On ...

Jihadists called for Twitter employees to be assassinated. The CEO of Twitter and other employees have received death threats from the Islamic State, after the microblogging service shut down some of the jihadists' accounts. Twitter CEO Dick Costolo disclosed the calls for their "assassination" during a conversation at Vanity Fair's New Establishment ...