I don't tweet! Twitter news chief Vivian Schiller quits

According to BBC news: Twitter's inaugural head of news Vivian Schiller has announced that she is stepping down after less than a year in the job due to a larger reorganisation.

Ms Schiller said in a series of Tweets that she was leaving so that the company's new media boss Katie Stanton 'can reorganise as she sees fit'.

There have been several management changes at Twitter this year.

Its former chief operating officer, head of North American media and head of music all recently quit.

She tweeted this, on her twitter page, @vivian (Vivian Schiller)