The document discusses how literacy is changing in the 21st century due to new technologies and how Web 2.0 tools such as blogs, wikis, and podcasts can be used in language arts classrooms. It provides examples of classroom uses for each tool, including using blogs for literature circles, wikis for group projects, and podcasts for book reports or sharing original student work. Guidelines are offered for setting up and integrating these tools safely and for assessing student work.