The document discusses the evolution of the internet from Web 1.0 to Web 2.0. Web 1.0 was characterized by one-way communication through corporate websites and personal homepages. Web 2.0 is driven by user participation through social media, blogs, RSS feeds, wikis, social bookmarking, and file sharing sites which allow collaboration and sharing between users. Key technologies of Web 2.0 include social networks, blogs, RSS, and technologies that empower users and encourage participation and reuse on the internet.