This document discusses social media and Twitter. It provides an overview of social media and how it has modernized to reach consumers through the internet. It then focuses on Twitter, describing it as a social networking and microblogging service that allows users to send and read short messages. The document outlines how businesses can use Twitter for marketing, advertising, customer service and communication. It notes both pros and cons of using Twitter and concludes by emphasizing how Twitter allows information to spread globally and for people and businesses to stay connected.