The Janus face of Facebook: Positive and negative sides of social networking site use

There is an increasing awareness that social networking site (SNS) use includes a socio-psychologically positive and a negative side. However, research remains largely silent on which side dominates in driving SNS use. To address this gap and to better understand the nature of SNSs we examine the positive and negative drivers of SNS use in parallel. We draw on the uses and gratifications theory and place social enhancement and interpersonal connectivity as the socio-psychologically positive gratifications and exhibitionism and voyeurism as the adverse gratifications predicting SNS use. We further link these gratifications to two key psychological needs, namely self-presentation and the need to belong. We conceptualize our dependent variable, SNS use, as a multi-dimensional second-order construct that consists of content production, content consumption, amount of usage, and comprehensiveness of one's profile information. We use longitudinal data from Facebook users to test our research model. The results show that exhibitionism, voyeurism and interpersonal connectivity predict SNS use. Furthermore, the number of friends in the SNS decreases the effect of exhibitionism and increases the effect of social enhancement. Altogether, the role of exhibitionism and voyeurism in predicting SNS use underscores the need for increased awareness of the socio-psychologically dark side of SNSs.