Why did Twitter boss Dick Costolo stand down?

This article is from the source 'bbc' and was first published or seen on June 12, 2015 00:30 (UTC). It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.bbc.co.uk/news/technology-33103838

The article has changed 1 times. There is an RSS feed of changes available.