The city by the bay is getting ready for a disaster by launching a social initiative, SF72, with ties to Facebook, Twitter, and Airbnb.
Facebook is lifting restrictions on teens' privacy settings, which is sure to anger parents.
Twitter, which is preparing for an imminent IPO, submitted an updated S1 filing to the U.S. Securities and Exchange Commission that contained financial results for the first nine months of its current financial year.
Introducing F!rst, a new social network designed specifically for gamers.
The account claims to be a Twitter experiment, and hints suggest that's true.
German companies are not legally responsible for the way Facebook processes the personal data of people visiting the companies' Facebook fan pages, a German administrative court ruled on Wednesday, allowing the companies to keep using the pages without violating German data protection laws.
Twitter now has official stats on social engagement with TV shows to convince big brands that the network is an important ad outlet.
Twitter has fewer users and less revenue than Facebook, but in mobile advertising Twitter appears to have dodged the problems that dragged down Facebook's stock after its public offering last year.
Snapchat is giving photos and videos captured with its app some longevity.