Jack Dorsey days, Dorsey worked occasionally as a fashion model. By age fourteen, Dorsey had become interested in dispatch routing. Some of the open-source software he created in the area of dispatch logistics is still used by many taxi cab companies. Dorsey attended the University of Missouri–Rolla for two-plus years (1995–1997) before transferring to New York University, but he dropped out in 1999, one semester short of graduating. He first came up with the idea that he developed as Twitter while studying at New York University. While working on dispatching as a programmer, Dorsey moved to California. In 2000, Dorsey started his
Biz Radio Network the country. Sometime in 2012, Biz Radio Network quietly went off the air, and the remaining affiliates switched to similar business programming. Biz Radio's official website was shut down and their domain is up for sale. In November 2009, the Securities and Exchange Commission (SEC) alleged that Albert Kaleta and his firm Kaleta Capital Management sold $10 Million promissory notes to investors, the proceeds of which were to be lent to small businesses at 12 to 14 percent interest. Instead, the SEC alleged, the money was used to prop up the ailing Biz Radio network and a related investment advisory