Current literature on online criminal and deviant groups recognizes the role of online forums in the transfer of knowledge and socialization of members, but debates on the role of the Internet in the socialization and radicalization processes in the context of online extremist groups. This study contributes to the discussion by examining online radicalization process through the use of social learning theory and social network analysis. This innovation allows for assessment on the impact of online interactions with forum members on radicalization process. Findings found strong support of differential association and differential reinforcement, but showed the possibility of other mechanisms, such as self-radicalization, at play. Findings from the study highlight the need to for theory integration, the inclusion of online peer association, and replication to address the complex phenomenon of online radicalization.