Does Twitter have a viable future? Interim CEO Jack Dorsey and Chief Financial Officer Anthony Noto took turns Tuesday delivering a brutal assessment that investors did not want to hear: The company is still failing to attract enough new users to grow. Twitter hasn’t effectively explained why people of all stripes should use it, Dorsey …

Twitter’s San Francisco headquarters. James Martin/CNET Twitter has been a slow-growth company for a while. The company on Tuesday warned investors that it’s essentially a no-growth company. “We do not expect to see sustained meaningful growth in [monthly active users] until we start to reach the mass market,” Twitter CFO Anthony Noto told analysts during the company’s second quarter conference …

Twitter Wanted: A few good mobile-app developers to help attract new users to a popular yet struggling social network. Though you won’t find that ad anywhere, it could describe the focus of Twitter’s second annual Flight conference, which the company on Wednesday said will be held on October 21 in San Francisco. Despite having 300 million monthly users, Twitter’s user …

Steve Huffman, Reddit’s returning CEO, has said the site was never intended to be a “bastion of free speech.” Reddit Reddit may be best known for its Ask Me Anything forums, where celebrities allow themselves to be grilled by users on just about any topic. But that vaunted openness was missing Thursday, when the site’s new chief executive sidestepped important …

Who will Twitter choose as its next CEO? CNET What does it take to move Twitter out of Facebook’s shadow? That’s one of the existential questions facing a growing list of possible candidates for the top job at Twitter. The list, debated among industry insiders and analysts alike, includes those who work inside the struggling social network and outsiders who …

Update, July 10 at 3:20 p.m. PT: Interim Reddit CEO Ellen Pao stepped down Friday after controversy over the firing of a key staffer and debates over free speech on the popular Internet message board. Ellen Pao, interim CEO at Reddit, is under fire from the site’s volunteer moderators unhappy with her leadership. Justin Sullivan, Getty Images Interim Reddit CEO …

Interim Reddit CEO Ellen Pao resigned over differences with the social-news site’s board members. Justin Sullivan/Getty Images Interim Reddit CEO Ellen Pao has stepped down after controversy involving a political firing of a key staffer and debates over free speech on the popular Internet message board. Pao resigned after reaching a mutual decision with the company’s board of directors, Reddit …

Twitter Psst, Twitter wants to know your birthday — but will you let them? The social networking service said Monday with the new feature, users are now able to share and celebrate their birth date along with other users — complete with colorful animated balloons on that special day. Users can opt whether to share their B-day with the public, …

Pinterest’s e-commerce “buy” buttons, long awaited by users, are out. The popular digital-scrapbooking site on Tuesday rolled out “buyable pins” for its iPhone and iPad apps. The feature will allow shoppers to purchase products directly from Pinterest by tapping a blue “Buy It” button and using Apple Pay or a credit card. Buyable pins, which will also be running soon …

Twitter investor Chris Sacca is talking about Twitter again — this time criticizing how the microblogging site is handling CEO Dick Costolo’s departure from the company. Longtime Twitter investor Chris Sacca said the microblogging site is giving mixed messages about its CEO transition. Noah Berger/Bloomberg via Getty Images Twitter’s announcement last week that Costolo will step down July 1 to …