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Why would a terrorist choose to utilize the Internet rather than the usual methods of assassination, hostage taking, and guerrilla warfare? Conway (2006) identified five major reasons why extremist groups used the Internet: virtual community building, information provision, recruitment, financing, and risk mitigation. Terrorist and extremist organizations can use the Internet to increase their visibility and provide information about the group along with its goals without posing an increased risk to the members. It also allows them to easily ask for, and accept, donations through anonymous financial services such as Dark Coins. These benefits allow these groups to promote awareness of their cause, to convey their message to, and perhaps foster sympathy from a much larger pool of potential supporters and converts (Weimann 2010). Finally, the Internet also provides asynchronous services with global access, with the sender and recipient located at any place, at any time, without the need to link up at a specific time (Wagner 2005). In short, unlike the real world, cyberspace is borderless without limitation, and this makes identification, verification, and attribution a challenge.

As violent extremists continue to surface in online discussion forums, law enforcement agencies search for new ways of uncovering their digital indicators. Researchers have both described and hypothesized a number of ways to detect online traces of potential extremists, yet this area of inquiry remains in its infancy. This study proposes a new search method that, through the analysis of sentiment, identifies the most radical users within online forums. Although this method is applicable to web-forums of any type, the method was evaluated on four Islamic forums containing approximately 1 million posts of its 26,000 unique users. Several characteristics of each user’s postings were examined, including their posting behavior and the content of their posts. The content was analyzed using Parts-Of-Speech tagging, sentiment analysis, and a novel algorithm called ‘Sentiment-based Identification of Radical Authors’, which accounts for a user’s percentile score for average sentiment score, volume of negative posts, severity of negative posts, and duration of negative posts. The results suggest that there is no simple typology that best describes radical users online; however, the method is flexible enough to evaluate several properties of a user’s online activity that can identify radical users on the forums.

It is now widely understood that extremists use the Internet in attempts to accomplish many of their objectives. In this chapter we present a web-crawler called the Terrorism and Extremism Network Extractor (TENE), designed to gather information about extremist activities on the Internet. In particular, this chapter will focus on how TENE may help differentiate terrorist websites from anti-terrorist websites by analyzing the context around the use of predetermined keywords found within the text of the webpage. We illustrate our strategy through a content analysis of four types of web-sites. One is a popular white supremacist website, another is a jihadist website, the third one is a terrorism-related news website, and the last one is an official counterterrorist website. To explore differences between these websites, the presence of, and context around 33 keywords was examined on both websites. It was found that certain words appear more often on one type of website than the other, and this may potentially serve as a good method for differentiating between terrorist websites and ones that simply refer to terrorist activities. For example, words such as “terrorist,” “security,” “mission,” “intelligence,” and “report,” all appeared with much greater frequency on the counterterrorist website than the white supremacist or the jihadist websites. In addition, the white supremacist and the jihadist websites used words such as “destroy,” “kill,” and “attack” in a specific context: not to describe their activities or their members, but to portray themselves as victims. The future developments of TENE are discussed.

The use of the Internet as a vehicle of socialization has exploded in the 21st century and while this presents exciting possibilities, it also comes with troubling ones. Among those who have embraced this new medium are extremist groups, who use the Web as a space in which to communicate, exchange ideas, network and reach new followers. In regards to this last point, it provides them near unlimited opportunities to gain access to potential recruits and converts, raising interesting questions in terms of the dynamics of the radicalization process and how it manifests itself within the confines of this new arena. Through an analysis of postings made to the discussion board of Stormfront.org, this research paper examines whether or not the radicalization process follows the same transformative pattern in the virtual world as has been described in some of the leading academic theories that address this phenomenon in the physical one.

Although many law enforcement and intelligence agencies are concerned about online communities known to facilitate violent right-wing extremism, little is empirically known about the presence of extremist ideologies, expressed grievances, or violent mobilization efforts that make up these spaces. In this study, we conducted a content analysis of a sample of postings from two of the most conspicuous right-wing extremist forums known for facilitating violent extremism, Iron March and Fascist Forge. We identified a number of noteworthy posting patterns within and across forums that may assist law enforcement and intelligence agencies in identifying credible threats online.