• ecosystem
• social e-commerce
• taobao
• wechat

In this paper, we investigate two typical and important social commerce platforms in China :taobao.com and wechat. We examine the general structures of taobao and wechat separately to figure out the following questions: (1)what are the mechanisms of these two types of social commerce model through which the value is created; (2)How social media can affect consumer’s urge to buy impulsively; (3) Does the trait of information have interaction effect on the buyer-seller relationship; (4)The social commerce model is a meteoric businesse model or not.Following the reasearch of two types of social commerce model, we investigate the ecosystem of social e-commerce to figure out its advantages and disadvantages comparing to the traditional one.