Facebook, Whatsapp, Instagram messengers to be integrated

Zuckerberg asserts control over divisions in move which raises privacy questions

Instagram founders to leave Facebook amid reports of tension

Sources claim Systrom, Krieger frustrated by Zuckerberg’s involvement with brand

Commercialisation of WhatsApp may come at a cost

Facebook-owned messaging service has been hit with crises of its own

WhatsApp co-founder Jan Koum leaves Facebook

Move due to clashes over watering down of encryption, it is reported

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Zuckerberg admits ‘mistakes’ in dealings with Cambridge Analytica

Facebook chief acknowledges ‘breach of trust’ between social media giant and users

WhatsApp sets up small support team in Dublin

Messaging app establishes Irish company and is hiring staff to support its activities

Europe’s teenage tech tycoons meet up

Young entrepreneurs are taking the tech world by storm, but do they get enough help?

Media and Marketing in 2014: The A to Z

It was the year Bono said ‘oops’, nobody died at Today FM and Insomnia served coffee on ‘tap’

Elite security posse fostered founders of WhatsApp, Napster

Members of ‘w00w00’ have spawned more than a dozen companies, mainly in security

Denis O’Brien made $800m last year - Forbes Billionaire list

Telecoms and media entrepreneur is one of five Irish on Forbes’ 2014 billionaire list which is topped by Bill Gates for the first time in four years

WhatsApp chief reveals plans for voice function

Jan Koum outlines plans to move into voice at Barcelona’s annual Mobile World Congress

Innovation Talk: Growth of mobile is behind lavish WhatsApp purchase

Facebook’s great gamble

Why Facebook founder had to buy WhatsApp

Opinion: With 450 million active users, it has become the biggest messaging service in the world