1. Fort Hood gunman had told U.S. military colleagues that infidels should have their throats cut;Allen;The Daily Telegraph,2009
2. Transcending organization: Individuals and “The Islamic State;Brachman;START Analytical Brief,2014
3. Apple, the FBI, extremists and strategic soft targeting;Braniff;War on the Rocks,2016
4. Terrorist use of the Internet by the numbers: Quantifying behaviors, patterns, and processes;Gill;Criminology & Public Policy,2017
5. Internet Live Stats 2016 Internet users internetlivestats.com/internet-users/