This document discusses the 6 main types of social media: 1) social networks like Facebook and LinkedIn for connecting with others, 2) bookmarking sites like StumbleUpon for saving and sharing links, 3) social news sites like Reddit and Digg for sharing news articles and voting, 4) media sharing sites like YouTube and Flickr for uploading photos and videos, 5) microblogging sites like Twitter for sharing short updates, and 6) blogs, blog comments, and forums for information sharing and discussions. It provides tips for using each type of social media and encourages contacting Sprint Marketing for help with digital marketing planning.