Edmodo

Teachers, Edmodo provides a safe and easy way for your class to connect and collaborate, share content, and access homework, grades and school notices. There is also an IPhone app. Already widely in use in the Caribbean as part of CSEC preparation.

http://www.edmodo.com/
http://en.wikipedia.org/wiki/Edmodo

Videos
http://www.youtube.com/watch?v=TzPHQr1ONaA
http://www.youtube.com/watch?v=nHtwgZEHzNs&feature=related
http://www.youtube.com/watch?v=YAzKwC-Jz9Q&feature=related
http://www.youtube.com/watch?v=Imjn6b5sNto&feature=related
http://www.youtube.com/watch?v=Ur0c1h1Gdas&feature=related
http://www.youtube.com/watch?v=x8EFlpuKk4A&feature=related
http://www.youtube.com/watch?v=uOzhfG3aKWQ&feature=related