Twitter Co-Founder Pushes New Effort to Use Technology for Social Good

The Twitter co-founder Biz Stone plans to announce tonight that he is joining forces with a nonprofit technology group to start ConvergeUS, a charity that seeks to combat social problems with new technology.

The nonprofit’s goal is to make resources of large technology companies more available to nonprofit, academic, and government organizations, said Rey Ramsey, chief executive of TechNet, who said he approached Mr. Stone to work with his group.