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The Islamic State’s (IS) online propaganda has been analyzed from various perspectives aimed at defining the role of the Internet, the power of social media networks, and the main narratives processed online by terrorist organizations. Nevertheless, very little research has focused on defining IS’s comprehensive media strategy. To date, IS propaganda has been defined as multidimensional or as a mix of techniques related to moviemaking and video games. In consideration of the highly sophisticated IS online dissemination activity and its impact on Western youth who are already familiar with intensive media consumption, this article explores IS propaganda through a Hollywood-style transmedia approach. I analyze, through a qualitative content analysis of the magazine Dabiq narratives, IS propaganda as a comprehensive transmedia strategy centered on three key assets: synergistic storytelling, imaginary world-making, and semantic triggering.

This article is a systematic large-scale study of the reasons driving political fragmentation on social media. Making use of a comparative dataset of the Twitter discussion activities of 115 political groups in 26 countries, it shows that groups that are further apart in ideological terms interact less, and that groups that sit at the extremes of the ideological scale are particularly likely to have lower patterns of interaction. Indeed, exchanges between centrists who sit on different sides of the left–right divide are more likely than connections between centrists and extremists who are from the same ideological wing. In light of the results, theory about exposure to different ideological viewpoints online is enhanced.

Women participate extensively in armed, Islamist struggle. In recent years, foreign women have travelled from the West to join Daesh. Their participation perplexes policymakers, government officials, and researchers who call attention to the group’s gendered regulation, violence, and widespread use of rape. Consequently, observers often argue that women are deceived by the organisation or seduced by the promise of romance. This suggests that women would not, under rational circumstances, choose to join the group. In this article, we address two resultant questions: why do Western women join Daesh? Are their motivations distinct from other Islamist recruits? Using an original dataset of social media activity from 17 Western female recruits between 2011–15, we conclude that women are primarily driven by religious ideology that adopts an expressly gendered frame. We find that feelings of isolation and disaffection also drive migration. We suggest that female foreign recruits are not unique in their motivations and share many similarities with male fighters and women in other Islamist organisations. This research has valuable implications for security studies and counterterrorism, which tend to treat extremist women as unique. Female recruits should be taken seriously as insurgents intent on establishing an Islamic caliphate.

Blogs, social media, and search engines have democratized information seekers and providers. However, the same affordances of the Internet have also contributed to resurgence and transformation of far-right and racist communities. Despite a growing number of studies of far-right communities, little attention has so far been paid to the mechanisms through which far-right and racist ideologies are presented to the wider public. This paper contributes to this field of research with a longitudinal study of Swedish anti-immigration activity on Twitter between 2010 and 2013. Results are placed in a larger context provided by additional data from blogs and related studies.

Over the last decade, there has been an increased focus among researchers on the role of the Internet among actors and groups across the political and ideological spectrum. There has been particular emphasis on the ways that far-right extremists utilize forums and social media to express ideological beliefs through sites affiliated with real-world extremist groups and unaffiliated websites. The majority of research has used qualitative assessments or quantitative analyses of keywords to assess the extent of specific messages. Few have considered the breadth of extremist ideologies expressed among participants so as to quantify the proportion of beliefs espoused by participants. This study addressed this gap in the literature through a content analysis of over 18,000 posts from eight far-right extremist forums operating online. The findings demonstrated that the most prevalent ideological sentiments expressed in users’ posts involved anti-minority comments, though they represent a small proportion of all posts made in the sample. Additionally, users expressed associations to far-right extremist ideologies through their usernames, signatures, and images associated with their accounts. The implications of this analysis for policy and practice to disrupt extremist movements were discussed in detail.

Objectives
Despite popular notions of “filter bubbles” and “echo chambers” contributing to radicalization, little evidence exists to support these hypotheses. However, social structure social learning theory would suggest a hereto untested interaction effect.
Methodology
An RCT of new Twitter users in which participants were randomly assigned to a treatment of “filter bubble” (personalization algorithm) suppression. Ego-centric network and survey data were combined to test the effects on justification for suicide bombings.
Findings
Statistically significant interaction effects were found for two proxies of the echo chamber, the E-I index and modularity. For the treatment group, higher scores on both factors decreased the likelihood for radicalization, with opposing trends in the control group.
Conclusions
The echo chamber effect may be dependent on the filter bubble. More research is needed on online network structures in radicalization. While personalization algorithms can potentially be harmful, they may also be leveraged to facilitate interventions.