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Abstract-Mobile Internet has played an essential role in our daily life. An overwhelming majority of marketers have noticed the great opportunity to diffuse information by this platform. However, most of the diffusion mechanisms are for a certain mobile social media, which can not reflect the characteristics of innovation diffusion in whole mobile Internet. In this paper, we use a three-step method to identify the hidden relations among different users, and establish a number of interest-based communities based on the characteristics of mobile Internet. Considering the structure of these communities and user preferences, we propose a novel diffusion mechanism. Our experimental results show that the proposed model can provide an ideal effectiveness on innovation diffusion.