The document discusses various digital tools that are essential for 21st century learning, including blogs, wikis, and Google Apps. Blogs allow students to publish online journals and diaries, which can increase writing skills and knowledge sharing. Wikis facilitate collaboration and allow students to collectively create and edit content. Google Apps like Docs, Sites, and Drive enable students to create, share, and collaborate on projects online. These digital tools provide opportunities for communication, reflection, publishing student work, and facilitating collaboration both within and outside the classroom. The document advocates that teachers choose one tool to implement based on their learning objectives and provide guidance to help students get started.