This is very similar to Edmodo. At EnterTheGroup.com users create their own groups, called Projects, to get their work completed. This site allows users to collaborate and organize projects.I am still exploring this tool but thought that I would share it! Enter the Group - however it is project based oriented, meaning to complete a project you can utilize this site to file share, etc.
You can create a virtual classroom - once you create a classroom - an url is generated for you to share. Here is my classroom: Social Media
