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Online radicalisation to terrorism has become a pervasive policy concern over the last decade. However, as a concept it lacks clarity and empirical support. In this article, we add an empirical and theoretical lens to this problem by analysing the trajectories of 231 Islamic State terrorists. We use cluster analyses to create typologies of individuals’ different online and offline antecedent behaviours, including the ways in which they engaged in networks with co-ideologues and how they prepared for their events. The findings suggest four types of pathway within our dataset: 1) The “Integrated” pathway which has high network engagement both online and offline, mostly made up of individuals that plotted as part of a group; 2) The “Encouraged” pathway contains individuals that acted more in the online domain at the expense of offline; 3) Terrorists in the “Isolated” pathway are defined by a lack of interaction across either domain; 4) The “Enclosed” pathway encompassed actors that displayed greater offline network activity, but still utilised the Internet for planning their activity. These typologies help to move beyond the dichotomy of online or offline radicalisation; there remain few individuals that either exclusively use the Internet or do not use it at all. Rather, we can conceptualise Internet usage on a spectrum in which these four typologies all sit.

VOX-Pol Blog Post.

Incels are a sub-culture community of men who forge a sense of identity around their perceived inability to form sexual or romantic relationships. In recent years, there has been a small, but growing, number of violent attacks that have been attributed to individuals who identify as incels. The purpose of this study was to use a large sample of incels from the UK and US to establish (a) their demographic make-up; (b) the consistency of their attitudes and beliefs; (c) their adherence to a common world view, (d) how they network with other incels; (e) whether there are cross-cultural differences between incels from the UK and US in the above; and finally, whether there is a predictive relationship between incel mental health, networking and ideology and the extent of their harmful attitudes and beliefs.

Policymakers have recently expressed concerns over the role of recommendation algorithms and their role in forming “filter bubbles”. This is a particularly prescient concern in the context of extremist content online; these algorithms may promote extremist content at the expense of more moderate voices. In this article, we make two contributions to this debate. Firstly, we provide a novel empirical analysis of three platforms’ recommendation systems when interacting with far-right content. We find that one platform—YouTube—does amplify extreme and fringe content, while two—Reddit and Gab—do not. Secondly, we contextualise these findings into the regulatory debate. There are currently few policy instruments for dealing with algorithmic amplification, and those that do exist largely focus on transparency. We argue that policymakers have yet to fully understand the problems inherent in “de-amplifying” legal, borderline content and argue that a co-regulatory approach may offer a route towards tackling many of these challenges.

This article seeks to re-ontologize online radicalization. Individuals becoming terrorists after being exposed to online content have become a prescient concern for academics, policy makers, and journalists. Existing theoretical contributions to the concept have assumed that there are two ontological domains—online and offline—that can be meaningfully separated. This article will draw from several arguments from other fields which critique this position; the contemporary information environment enmeshes the two inseparably. This argument is then advanced to demonstrate that online radicalization is a redundant concept by drawing on empirical research as well as recent case studies of terrorism. Instead, scholars should consider holistic theories which account for a range of other factors beyond online communication technologies.

VOX-Pol Blog post.