Edmodo is a social networking site for teachers and students to connect and collaborate in a secure learning environment. It allows teachers to post assignments, messages, and grades for students, and engage students in exploring real-world issues and reflecting on their learning. Some key advantages are that it is free, secure, enables mobile access, and has features like calendars, quizzes and file sharing. Both teachers and students appreciate that it is intuitive to use like Facebook, yet private and focused on education. Students value being able to easily communicate and collaborate on homework assistance.