Company will open portal allowing any mobile operator to offer service under its Internet.org platform.
Traditional TV networks are recruiting Internet personalities to build audiences.
Facebook opens Johannesburg office as it looks to add to its existing 120M users on the continent.
Dick Costolo had been under pressure from investors unhappy with the firm's user growth.
President Barack Obama quickly amassed a multitude of followers to his personal Twitter account.
The social media giant announces it will allow more websites to join "free mobile data" plan amid backlash.
Tens of thousands of users of the social networking site allege violation of European privacy laws.
Sites comply with court order to stop sharing images of a prosecutor being held at gunpoint.
More than 1,000 properties listed on the vacation home rental site, but can only be booked by users in the U.S.
Messenger service opens up to third-party developers, allowing them to add functions of their own.
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