This document discusses social media marketing and how it has become a paradigm shift in marketing practices. It defines social media marketing as engagement with social media tools to generate exposure, opportunity, and sales. It discusses how social media allows for participatory and multi-way communication between brands and customers. The top 5 social networks are identified as Facebook, Twitter, LinkedIn, MySpace, and Google Plus in terms of unique monthly visitors. The document outlines the key components of a social media marketing system and process and lists common social media tools. It describes how social media marketing can build brand loyalty through conversation and dialogue on social networks while shifting power from brands to consumers.