The document introduces various social networking tools, media, and websites that have emerged with the development of Web 2.0 technologies. It discusses early examples of social networking from biblical times to the present. Key social networking tools and platforms mentioned include blogs, RSS feeds, YouTube, Flickr, Delicious, Twitter, LinkedIn, Facebook, and FriendFeed. The document advocates for treating online networking as a strategic part of business and providing guidance to employees on appropriate use of these tools to represent an organization.