Jack Dorsey Chairman after Dick Costolo replaced Williams as the CEO. On June 10, 2015, Costolo announced that he was resigning as CEO of Twitter, effective July 1, 2015. Dorsey would assume the post of Interim CEO upon Costolo's departure. He was named permanent CEO of Twitter on October 5, 2015. On the day after the controversy about Twitter's new algorithms for tweets, Dorsey responded to the trend, saying it was only a hoax. In May 2016, Dorsey announced that Twitter would not count photos and links in the 140-character limit to free up more space for text. This move was an
Biz Stone Strategies for Instant Web Content" (New Riders, 2002), "Who Let The Blogs Out?" (St Martins, 2004),[19] and "Things A Little Bird Told Me" (Grand Central, 2014). In addition to his long running personal blog and Medium articles, Stone has published op-eds for The Atlantic, and The Times of London. Stone is an active philanthropist, and is involved in causes including animal rights, veganism, environmentalism, poverty, health and education. Stone is an advisor and contributor to DonorsChoose, a nonprofit organization helping classrooms in need. Stone lives in Marin County, California with his wife Livia and his son Jacob. He and his