The document discusses the differences between Web 1.0 and Web 2.0, defining Web 2.0 as more dynamic, interactive, and user-driven through practices like user-generated content, social tagging, and web feeds. It provides examples of popular Web 2.0 applications like Delicious, Google Reader, Twitter, and online games that allow content creation, collaboration, and sharing. The document also addresses some issues with Web 2.0 like privacy, commercialization, and copyright.