The use of online social networks (OSNs) has grown substantially over the past few years and many studies have reported positive effects of using OSNs platforms. However, the negative effects of OSNs have received little attention. Given the lack of studies in this area, we conducted a review of top information systems journals to explore the gaps in the literature. Our review identified a number of theoretical and practical gaps. We then recommended an agenda for the future research, highlighting the importance of the dark side of OSNs and guiding researchers on how they can identify, mitigate and reduce negative consequences of using OSNs on different aspects of human lives.