For nearly two years, an extraordinary effective terrorist propaganda has been flooding the Internet. Through an unfailing control over social networks and the mass production of ultra-violent footage enhanced by special effects and edited like rap music videos, the ISIS (Islamic State of Iraq and al-Sham) terrorists have been hammering their hateful message.. How did the Internet become, and in such a short time, some kind of travel agency promoting armed jihad as the ultimate destination? Who are these dreadful terrorist cyber-headhunters? Can we fight against this indoctrination machinery?