After leaving Twitter in 2011 to pursue new projects, Twitter co-founder Biz Stone has announced that he's returning to the company to "guide company culture." Stone said in a statement: "It's important that everyone understands the whole story of Twitter and each of our roles in that story. I'll shape the experience internally so it's also felt outside the company." TechCrunch reports: About a month ago Stone sold his most recent startup, Jelly, to Pinterest. He said at the time that he wasn't required to stay on with Pinterest, so was available for new opportunities. Stone said he was recently back at Twitter as a "special guest" for an event open to employees, where current CEO and fellow co-founder Jack Dorsey -- another founder who left and then returned -- asked him onstage if he wanted to come back and work at Twitter. After some employee cheers, and a private clarification that Jack was in fact being serious, he accepted. Twitter diehards are reacting positively to the news -- 查看全文>>