The document discusses how the internet has evolved into a more social platform through various applications and networks. It covers: 1) Today's internet which has changed with user-generated content and Web 2.0. 2) Syndication aggregators like RSS and Atom that collect updates from websites for the user. 3) Social applications including widgets, blogs, and custom searches. 4) Popular community networks such as Facebook, YouTube, del.icio.us, and Second Life that allow sharing and interaction. 5) eXtension which is a social network for extension professionals.