Messenger service opens up to third-party developers, allowing them to add functions of their own.
Monica Lewinsky took to the stage at the Ted conference to call for a more compassionate internet.
Group suspended one year amid allegations that nude female photos were posted without subjects' knowledge.
Chinese e-commerce company strikes its latest Silicon Valley deal as it builds up mobile services.
Facebook ties up with Indian telecom to offer free access to a handful of online services.
C.E.O. Dick Costolo said that bullying behaviour on the network was driving users away.
Said its own engineers caused problem that rendered social networking site inaccessible for a time.
Imposes lock-outs on people trying to access service via an unauthorised Android app.
Le Monde said its account and publishing tool were hacked by a group called the "Syrian Electronic Army."
Report states social networking firm generated $227B worth of economic impact and 4.5M jobs in 2014.
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