This study presents and evaluates the educational potentials that Social Network Services (SNS) offer to students in the higher education context. The first aim of this study is to explore students' perceptions of Facebook Learning Groups (ie, Facebook Groups that were created for learning purposes), and the learning and affective benefits that SNS offer to students. This study further explores the influence of four identified factors (ie, self-efficacy, privacy, trust and presence of teaching members) in moderating students' perception and learning engagements on SNS. Findings from an online survey demonstrate the usefulness of these learning groups. Trust and presence of teaching members were also indicated to have significant influences in affecting students' perception and engagement in Facebook Learning Groups.