Although social media marketing is a well-researched topic, it has only been studied through experimental and theoretical research; studies never precisely describe the benefits retailers gain from this marketing tactic. In reviewing the rich plethora of multi-disciplinary literature, it is has become clear that studies are focusing on describing what social media marketing is as well as examining what factors affect consumer behavior relative to social networking. Despite the initial progress made by researchers, development in this area of study has been limited. Research needs to expand by providing a deeper understanding of the Longterm promotional gains retailers obtain from social media marketing. More formalized studies are also needed to progress beyond theorized or predicted outcomes in order to gain knowledge of real-life applications. This review of literature touches upon the gaps that currently exist within social media marketing research and points out the need for future studies to explore the benefits gained by marketing on social networking sites, especially for small retailers.