Jack Dorsey fashion design. As the service began to grow in popularity, Dorsey chose the improvement of uptime as top priority, even over creating revenue – which, as of 2008, Twitter was not designed to earn. Dorsey described the commercial use of Twitter and its API as two things that could lead to paid features. He describes his three guiding principles, which he says are shared by the company, as simplicity, constraint and craftsmanship. On October 16, 2008, Williams took over the role of CEO, while Dorsey became chairman of the board. On March 28, 2011, Dorsey returned to Twitter as Executive
Evan James Williams the newly formed Operational Research Section at the Admiralty's Coastal Command where he worked for several more years devising more effective methods of dealing with German submarines. Williams died of cancer in September 1945 at his parents' home in Brynawel, Carmarthenshire, at the age of 42 after an 18-month illness. He was buried at Capel y Cwm, Cwmsychbant. His obituary for the Royal Society was written by Blackett, who also broadcast a radio appreciation of Williams in 1949, in which he said: In 1971 John Tysul Jones published a collection of articles about Williams. Evan James Williams Evan James Williams