This paper looks at how the new possibilities provided by the Internet amplify and facilitate dynamics of radicalization into violent extremism (RVE), accelerate catalysts for engaging in radicalizing cognitive processes, and enable or ease access to radical discourses. It conceptualizes RVE into three components (Background factors and ‘activators,’ issues of identity, and social network mechanism) and subsequently examines the Internet’s influence in those areas. In conclusion, the paper introduces an explanatory ‘three-circles model’ for Internet-facilitated radicalization into violent extremism. The model presents a conceptual symbiosis between the vulnerable, grieving and seeking individual stimulated by Web-based content and kinship offers, and the Internet-promoted ‘capacity building’ of extremist groups.