The document discusses the evolution of the internet from Web 1.0 to Web 2.0. Some key aspects of Web 2.0 include user-generated content through sites like Flickr and Wikipedia, folksonomies using user-generated tags to organize content, RSS feeds to receive customized content updates, and increased interactivity through technologies like AJAX and social networks. The rise of these new applications and services represents a shift to a more collaborative "read-write" web where users are actively contributing content.