Co-founder steps aside at Twitter

Isaac “Biz” Stone is moving on from Twitter, just five years after co-founding the microblogging site that has become integral to the social media scene around the globe.

Stone, 37, said on his blog that he will work with the company “for many years to come”, but that the most effective use of his time now is to “get out of the way” of Twitter’s crew and leadership team until he is called upon to be of some specific use.