The 1990's saw the growth of the World Wide Web and the personal computer (PC), In 1991, when the WWW first became available for the public it grew dramatically with users multiplying at the rate of about 3500 times a year. By 2000 there were an estimated 295 million users on the Internet. This in turn caused a continuing revolution in communication and business. Hubble Space Telescope was launched into low Earth orbit in 1990.