This document discusses the popularity and uses of social networking sites. It lists many popular social networking sites like Facebook, MySpace, Twitter, YouTube, and LinkedIn. It notes that social networking sites are now more popular than porn sites. It provides tips on how newspapers and media companies can use social networking sites to promote their brands, alert people to breaking news, and communicate with their audience. It recommends services like FriendFeed and Ping.fm to manage social media profiles and encourages organizations to engage with customers where they are online through social networking.