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
Social media use by businesses and social media. Though community-owned, some community radio, TV, and newspapers are run by professionals and some by amateurs. They use both social and industrial media frameworks. Social media has also been recognized for the way they have changed how public relations professionals conduct their jobs. They have provided an open arena where people are free to exchange ideas on companies, brands, and products. Doc Searls and David Wagner state that the "...best of the people in PR are not PR types at all. They understand that there aren't censors, they're the company's best conversationalists." Social media provides an environment