The Internet (originally ARPAnet) was developed as a network between government research laboratories and participating departments of universities. Other companies and organizations joined by direct connection to the backbone, or by arrangements through other connected companies, sometimes using dialup tools such as UUCP. By the late 1980s, a process was set in place towards public, commercial use of the Internet. Some restrictions were removed by 1991,Outreach: The Internet , U.S. National Science Foundation, "In March 1991, the NSFNET acceptable use policy was altered to allow commercial traffic." shortly after the introduction of the World Wide Web.
