Edmodo can also be used as to create Professional Learning Communities within a school to improve student learning or you might choose to broaden your horizons beyond your own educational institution by joining an Edmodo Community.
Additional features of Edmodo include a grade book, an event/assignment calendar and your own resource library where you can store an unlimited number of files and links. Are you a Google Docs/Drive user? If so, connect Edmodo to your Google Docs/Drive account to easily access existing files and attach them to notes, assignments etc. The only limitation is the max file size for upload is 100mb.
Whether you're looking for a classroom or school based Learning Management System(LMS), Edmodo is definitely worthy of consideration.
Want to learn more? Check out Edmodo in Action for resources related to getting started.