The document discusses collaborative environments and tools that allow students and teachers to communicate, share information, and work together virtually. Some key attributes of collaborative environments include communication between multiple users, ubiquitous access, an authentic appearance, intuitive design, content sharing, and portable creative products. Benefits include fostering teamwork, facilitating critical thinking, and enabling global initiatives. Challenges to implementation include questions around online safety and information security as well as integrating these tools into current teaching practices. The document provides examples of collaborative tools like Voicethread, Wikispaces, and Mindmeister.