dick costolo

former Twitter CEO Dick CostoloDick Costolo is out as chief executive of Twitter, and Jack Dorsey, one of the company’s co-founders, is in – at least on an interim basis.

Here’s how the news unfolded on the messaging platform on Thursday. Read more

Tim Bradshaw

As usage and advertising spending on Twitter’s smartphone apps begins to overtake activity on PCs, the company is refocusing on mobile, according to its chief executive.

Speaking to the FT earlier this week, Dick Costolo said that 55 to 57 per cent of Twitter’s users were on mobile, particularly as it expands outside the US, which now makes up around 25 per cent of its users, reaching as high as 80 per cent in the UK.

“That is great for us because our mobile users are more engaged,” he said. “When you are active on Twitter on mobile you use it more than if you were a desktop user.” Read more