Social Media have provided new opportunities to consumer to engage in an social interaction on internet. Now a days, Consumers use social media to online communities, to generate content and to network with other users. The social media have changed the power structure at the place where goods sold and purchased online with marketing tools and techniques. The study observed that consumers are adapting to online marketing and their buying behavior is being influenced accordingly. The aim of this paper is to study the impact of social media on consumer buying behavior.