With the internet becoming the new place to interact socially with friends, family and colleagues, a range of different social media sites has arisen over the last decade that give users multiple ways to engage and interact with their social contacts. This guide is intended to give a brief overview of a number of different social media platforms that are currently available online at the time of writing. It aims to provide an outline of the key features, background information, and specifications relating to capacity and usage that each platform has to offer. While this guide gives an insight into some of the most popular social media sites like Facebook and Twitter, it also gives details about some lesser known sites, providing valuable information for both new social media users and existing users alike.