Social media has experienced significant growth in the past several years.As its user base expands,social media plays an increasingly important role in peoples lives.However,few research discusses the impact social media com-munities have on their users.It is thus imperative to conduct empirical research on impacts of specific social media communities.This paper conceptually de-scribes in a precise manner the effect that social media communities have on people who communicate and interact with each other within such communities by conducting an empirical research on a typical online social media community.We then expound the result from our analysis on data gathered and reach certain conclusions which may be useful to the general public who participate in social media communities and may of value to the regulatory agencies and commercial users of social media as well.