What characterises social media radicals? And why some people become attracted to radicalisation? To explore answers to these questions, a number of tweets posted by a group of suspected radicals tweeting in Arabic were analysed using social network analysis and machine learning. The study...

Do people who express negative feelings (loneliness, sadness) on Twitter gain or lose online contacts? To answer this question, the authors tracked the number of followers and followees of people who tweeted about loneliness or sadness twice; once when they expressed the negative feeling and a...

Social networking users are presented with a plethora of profile and privacy settings; most of which are left defaulted. As a result, there is little understanding of the fields that make up the user profile, the privacy settings available to safeguard the user, and the ramifications of not...