The document discusses how classrooms have increasingly escaped their traditional boundaries through social media and online communities. It encourages embracing this change by using social media to distribute free supporting content from classes. Suggestions include posting short videos, images, podcasts and articles on platforms like Twitter, Facebook, YouTube and Periscope on a regular automated schedule to engage both students and a wider community of interest. The goal is to enhance teaching by allowing the classroom to extend its reach through complementary online content and discussions on social media.