Twitter on Wednesday added Facebook-style photo "tagging" and bumped up the number of images that iPhone users can share in a single post.
The market for mobile device advertising doubled in 2013 to $17.9 billion and is on pace for strong gains this year, led by Facebook and Google.
Facebook chief Mark Zuckerberg said Thursday he had called President Barack Obama to complain that the US government is undermining confidence in the Internet with vast, secret surveillance programs.
Turkish Prime Minister Recep Tayyip Erdogan's regime, mired in a corruption scandal, suffered a new blow on Sunday with the online release of another allegedly incriminating phone call involving an ex-minister and a businessman.
Turkey's embattled prime minister has warned that his government could ban social media networks YouTube and Facebook after a raft of online leaks added momentum to a spiralling corruption scandal.
Yahoo confirmed that it will stop letting people sign into its online services using credentials from rival Internet titans Facebook or Google.
Facebook is taking aim at people who are using the social network or Instagram photo-sharing platform to sell guns.
Facebook is in talks to buy a solar-powered drone startup in what could lead to making wireless Internet available in regions without online access.
The Facebook deal for WhatsApp drew attention for its whopping price tag, but has also brought out fresh criticism over security for the billions of messages delivered on the platform.
Facebook is betting huge on mobile with an eye-popping cash-and-stock deal worth up to $19 billion for Internet Age smartphone messaging service WhatsApp.
Facebook freed members from the bonds of being either male or female, letting people opt for custom genders such as transsexual or "intersex" at the social network.
Facebook founder and CEO Mark Zuckerberg was America's most generous donor in 2013, giving nearly $1 billion of his fortune to charity.
Twitter got a reality check Wednesday as the high-flying messaging company reported modest user growth during a quarter in which it lost $511 million.
Facebook has grown into an Internet giant over the last decade, but it is celebrating its birthday with a low-key, belated party and an eye toward the future.
Internet titans eager to regain the trust of users for the first time on Monday provided insight into numbers of secret requests for user data made by the US government.
The United States agreed to give technology firms the ability to publish broad details of how their customer data has been targeted by US spy agencies.
A Singapore-based British wealth manager's Facebook posts deriding public transport commuters as poor are "deeply offensive, wrong, and unacceptable".
Facebook is like an infectious disease, experiencing a spike before its decline, according to US researchers who claim the social network will lose 80 percent of users by 2017.
A Porsche-driving British wealth manager in Singapore who referred to public transport commuters as "poor people" has apologised after his Facebook posts sparked an online furore.
The surge into social networks is gaining pace among Americans, with Facebook dominating but with many people using multiple platforms, a study showed Monday.
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