This study focuses on the value of social platform and investigates the relationships between knowledge sharing and customer value. The study examines the effects of social network attributes on knowledge sharing in social platforms, and the effects of knowledge sharing on customer value in social platforms. In the context of social platform, this study clarifies the concept of customer value, the role of knowledge sharing, and the relationships between knowledge sharing and customer value. The study builds a theoretical model regarding social platforms and customer value that offers implications for advertising & PR practitioners.