Google Keep is a relatively new collaborative note taking and reminder tool that is inside our Google Accounts. I made a short video explaining it. Please reach out if I can help further.
I know some of you are already using Edulastic.
Edulastic allows you to create online assessments with free teacher accounts. It offers question items that are premade that are linked to the Common Core and the ability to create your own test items. There are 30 different types of interactive test items that you can create.