Virtual Learning Environments

About
Edmodo 

Edmodo provides teachers and students a secure place to connect and collaborate, share content and educational applications, and access homework, grades, class discussions and notifications. Our goal is to help educators harness the power of social media to customize the classroom for each and every learner.
www.edmodo.com

Google Classroom

Classroom helps teachers save time, keep classes organized, and improve communication with students.Classroom is a new tool in Google Apps for Education that helps teachers create and organize assignments quickly, provide feedback efficiently, and easily communicate with their classes. Classroom helps students organize their work in Google Drive, complete and turn it in, and communicate directly with their teachers and peers.
Classroom weaves together Google Docs, Drive and Gmail to help teachers create and collect assignments paperlessly. They can quickly see who has or hasn't completed the work, and provide direct, real-time feedback to individual students. Teachers can make announcements, ask questions and comment with students in real time—improving communication inside and outside of class. Classroom automatically creates Drive folders for each assignment and for each student. Students can easily see what’s due on their Assignments page.