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
Evan Williams (diplomat) Evan Williams (diplomat) Evan John Williams (born. 1950) is a retired Australian diplomat and public servant who served as the Administrator of the Australian Indian Ocean Territories from 1 November 2003 until 31 October 2005. Evan Williams grew up in the Blue Mountains of New South Wales and was educated at Katoomba High School, graduating in 1968, the first graduating year of the Wyndham Scheme. Williams holds a BA from Australian National University and a Master of Letters from University of New England, Australia. Williams joined the Department of Foreign Affairs and Trade upon leaving university and took postings in