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VOX-Pol Blog post.

Social media has become the milieu of choice to radicalize young impressionable minds by terrorist organizations such as al Qaeda and the Islamic State. While a plethora of research exists on the recruitment and propaganda efforts by terrorist organizations there is limited number of quantitative studies that observe the relationship of gender and the involvement in online radical milieus. This current research will build upon prior studies through the comparative analysis of 750 unique Twitter accounts supporting the IS and the affiliates of al-Qaeda that were non-randomly sampled between January and September of 2015. The research aimed to address the questions of: 1) whether women that are involved in pro-jihadist communities on Twitter post substantively different amounts of content than men, 2) whether women that are involved in pro-jihadist communities on Twitter post substantively different content than their male counterparts and, 3) whether the gender disparity in level and type of involvement on Twitter differ amongst the supporters of different jihadist organizations. This study found that, while pro-jihadist communities on Twitter continue to be dominated by male participation, female supporters of the IS are more active and post more violent content than women that support any other organization. The intragroup differences found amongst the female supporters suggests that group ideology, recruitment and
propaganda strategies play a role in the level of involvement of women in radical milieus.

Little is known about online behaviours of violent extremists generally or differences compared to non-violent extremists who share ideological beliefs. Even less is known about desistance from posting behaviour. A sample of 99 violent and non-violent right-wing extremists to compare their online patterns of desistance within a sub-forum of the largest white supremacy web-forum was analysed. A probabilistic model of desistance was tested to determine the validity of criteria set for users reaching posting desistance. Findings indicated that the criteria predicted “true” desistance, with 5% misidentification. Each consecutive month without posting in the sub-forum resulted in a 7.6% increase in odds of posting desistance. There were no significant differences in effects for violent versus non-violent users, though statistical power was low.

This study analyzes cross-sectional data obtained from respondents in neo-Nazi online discussion forums and textual data from postings to these forums. It assesses the impact of participation in radical and homogeneous online groups on opinion extremism and probes whether this impact depends on political dissimilarity of strong and weak offline ties. Specifically, does dissimilarity attenuate (as deliberative theorists hope) or rather exacerbate (as research on biased processing predicts) extreme opinions? As expected, extremism increases with increased online participation, likely due to the informational and normative influences operating within online groups. Supporting the deliberative and biased processing models, both like-minded and dissimilar social ties offline exacerbate extremism. Consistent with the biased processing model, dissimilar offline ties exacerbate the effects of online groups. The theoretical and practical implications are discussed.

This paper reviews available research on how the internet facilitates radicalisation and measures to prevent it. It briefly canvasses evidence on the extent to which the internet contributes to radicalisation broadly, and who is most susceptible to its influence, before delving further into the mechanisms underpinning the relationship between the internet and violent extremism.

High-level approaches to combating internet-facilitated radicalisation, including content removal, account suspensions, reducing anonymity, and counternarrative and education campaigns, are mapped against these mechanisms. This illustrates how these approaches can disrupt radicalisation and assists researchers, policymakers and practitioners to identify potential gaps in existing counterterrorism and countering violent extremism regimes. Research on the implementation and outcomes of these approaches is also summarised.