High Quality Content by WIKIPEDIA articles! The presence of terrorist groups on the internet is a relatively new phenomenon, the growth of which has exploded in the past decade. Accurate estimates on the number of active terrorist group's websites vary due to difficulties measuring but, there is a general consensus that in 1996 there was just under 100 websites and to well over 5000 websites today. It is also widely accepted that all Foreign Terrorist Organisation's listed by the U.S. Department of State website have established an online presence of some form. Only after 9/11 has governmental and public interest really been focussed on terrorists and the internet shown by the large number of articles examining the issue in the media which primarily occurred due to evidence recovered from Al Qaeda computers in Afghanistan, that indicate the Internet was being used to collect intelligence and send encrypted messages. The definition of terrorism used in this document is that of thenew academic consensus definition: that terrorism is a politically motivated tactic involving the threat or use of force or violence in which the pursuit of publicity plays a significant role .