TeacherTube is a content management community that allows its users to publish publicly and privately, as well as share, edit, and modify content. With over 1.5 million users from around the world, TeacherTube has produced more than half a million educational resources. While the site features a paid service that allows users to better manage their content, proceed ad free, and create more complex tools, the free service will likely serve the needs of most readers. The site is organized by category, including Videos, Docs, Classrooms, Collections, and On-Demand. The On-Demand section features some of the best content on the site, with many well-produced movies on a range of topics, from the Civil Rights Movement (from the American Institute for History Education) to the possibilities for teaching empathy in the classroom (from Ashoka StartEmpathy).