This document provides an overview of the history and types of social media. It discusses the human need for social connection and how technology has enabled new forms of online communication. Early networks included ARPANET, email, and FTP. Tim Berners-Lee developed the World Wide Web in 1991, allowing for hyperlinked documents across networks. Popular social media platforms mentioned include Skype, Facebook, LinkedIn, Twitter, Instagram, Pinterest, blogs, podcasts, and YouTube. The document gives brief descriptions of each platform and suggestions for how to use social media safely and potentially benefit from it.