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
Sir Evan Williams, 1st Baronet and of the British Coal Utilisation Research Association. On 10 July 1935 he was created 1st Baronet Williams of Glyndwr in the County of Carmarthen. Companies of which he was a director included the Steel Company of Wales Ltd and Lloyds Bank. Sir Evan Williams, 1st Baronet Sir Evan Williams, 1st Baronet, of Glyndwr (2 July 1871 – 3 February 1959) was a Welsh industrialist. As Chairman of the Monmouthshire and South Wales Coalowners Association and later President of the Mining Association of Great Britain, he exerted considerable influence on the mining industry in the UK. Williams was born at