Jack Dorsey

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The Beddit app  on an iPhone. Your sleep app may be telling you about broken sleep that didn’t actually happen.  Photograph:  Jaap Arriens/NurPhoto via Getty Images

Fantasising about the perfect night’s sleep is not unusual for busy professionals and sleep-deprived parents. Getting a full eight hours is #weekendgo(...)

Construction in the Grand Canal Basin of Dublin Docklands. File photograph: Bryan O’Brien/The Irish Times

As Dublin city centre becomes ever more devoted to accommodating the trophy buildings of Silicon Valley’s trophy companies, we really need to talk. B(...)

Nextdoor chief executive Sarah Friar pictured at Moneyconf in Dublin last year

Nextdoor, a San Francisco social network company led by Northern Ireland executive Sarah Friar, has raised $123 million (€109 million) in a new fundin(...)

Companies that take these quick-turnaround boomerangers back benefit from the fact that they hit the ground running and don’t need retraining. Photograph: iStock

Apple co-founder Steve Jobs and Twitter co-founder Jack Dorsey are two high-profile examples of “boomerang” employees – people who leave and subsequen(...)

Conversation is Twitter’s ‘superpower’, the social media company claims. Photograph: Thomas White/Reuters

There are stock market statements so sunny they put “Monday motivation” tweets to shame, and then there’s this, courtesy of Twitter chief financial of(...)

Twitter’s chief executive Jack Dorsey says the platform is currently testing a mute button that will allow users to selectively hide replies to their own tweets

In the past Twitter has been criticised - and rightly so - for its sluggish response to reports of online abuse as well as a lack of screening for hat(...)

Analysts were cheered that Twitter had turned a corner in terms of monthly user growth and better appealing to advertisers. Photograph: Dado Ruvic/Reuters

Twitter posted better-than-expected quarterly revenue and a surprise rise in monthly active users, showing its efforts to delete spam accounts and bet(...)

Bank of England governor Mark Carney: Brexit ‘could go quite badly’. Photograph: Hannah McKay/Reuters

Image of the week: Carney’s caution Governor of the Bank of England Mark Carney, as certain MPs and indeed sections of the British press like to remi(...)

Twitter chief executive Jack Dorsey. Photograph: Chris Wattie/Reuters

Twitter chief executive Jack Dorsey said Silicon Valley companies, including his own, have not done enough to protect victims of online abuse, calling(...)

Social media gorup Twitter beat Wall Street’s expectations to report a jump in revenues. Photograph: Dado Ruvic/Reuters

Twitter shares fell close to 10 per cent on Thursday after the company said it would have to spend more to improve “health, conversation, revenue prod(...)

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