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
Tommy Dorsey The Dorsey Brothers' Orchestra split into two. In the early 1950s, Tommy Dorsey moved from RCA Victor back to Decca. Jimmy Dorsey broke up his big band in 1953. Tommy invited him to join as a feature attraction. In 1953, the Dorseys focused their attention on television. On December 26, 1953, the brothers appeared with their orchestra on Jackie Gleason's CBS television show, which was preserved on kinescope and later released on home video by Gleason. The brothers took the unit on tour and onto their own television show, "Stage Show", from 1954 to 1956. In January 1956 The Dorseys