A great place to design a website for your classroom. You can use this as a teaching tool, set up a tutorial on how to use this web site and how to navigate this site. Each student with teacher supervision can help with the site. the homepage for this is
LMS (learning management systems) like Haiku and others - create online classes. www.myhaikuclass.com and https://moodle.org/ and http://www.blackboard.com/Platforms/Learn/Overview.aspx and https://www.edmodo.com/ and http://www.eboard.com/ (although I'm not fond of eboard)
Otus was originally designed to be a service for teachers to distribute assignments, quizzes, polls, reading materials, and essential information from their iPads to their students' iPads. Otus has expanded to support use within a web browser on laptops and Chromebooks.