This may be of some use to the discussion. From RAND Europe,
Radicalisation in the digital era: The use of the internet in 15 cases of terrorism and extremism - Ines Von Behr, Anaïs Reding, Charlie Edwards, and Luke Gribbon, RAND:
http://bit.ly/1773kQs
"We live in a digital era. In the UK alone 85 per cent of homes have internet access. As society increasingly embraces the internet, so opportunities for those wishing to use it for terrorism have grown. The internet offers terrorists and extremists the capability to communicate, collaborate and convince. In recent years, European policymakers, practitioners and the academic community have begun to examine how the internet influences the process of radicalisation: how a person comes to support terrorism and forms of extremism associated with terrorism"