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
Cool Biz campaign billion yen in summer 2005. Dai-Ichi Life Research Institute announced that the total economic effect was more than 100 billion yen in 2005. During winter 2005, there was talk on many of the major news networks of promoting a "Warm Biz" style for winter, suggesting that people wear waistcoats, knit sweaters, and lap blankets. Warm Biz was not endorsed by the Japanese government at first. The food industry eagerly promoted this campaign by selling foods that warm people up, such as nabemono. However, the electric utility industry had little enthusiasm for the campaign. Since fossil fuel heating is popular in