Edmodo: https://www.edmodo.com/

Blendspace: https://www.blendspace.com/

Blubbr: https://www.blubbr.tv/

Edcite: http://edcite.com/

Kahoot: https://kahoot.it/#/

PBWorks: http://www.pbworks.com/

Edpuzzle: https://edpuzzle.com/