Terrorists, subversive political groups and gangs with violent agendas have found an easy and convenient means to promulgate their messages of hate - cyberspace. Whilst debate about the use of the internet by extremist groups rages around governments and media alike, little has hitherto been presented as analysis of the websites themselves. Timely and topical, Antonio Roversi presents an insightful look at the unregulated, anonymous, and easily accessible nature of the Internet and how it has been used to raise funds, recruit, train and promote acts of violence and disorder. This book will be a valuable resource for academics, researchers and policymakers with an interest in hate crime and the use of the internet as a means of incitement.