The document discusses various technologies that can be integrated into classrooms to engage students, including blogs, YouTube, wikis, social bookmarking tools like Diigo, and collaborative documents like Google Docs. It provides examples of how these technologies have been used, such as creating glogs, animations, online flashcards, and sharing ideas about literary works. The document advocates that these web 2.0 tools can help define 21st century skills and be superior to traditional classroom teaching alone when implemented effectively.