Newsela is a website that allows teachers/students to change the article's reading level by the lexile number. This will allow you to assign the same article at different reading levels. Great for having all students participate in a class discussion around the same topic, while allowing the students the ability to read the article at their respect reading level.
Awesome Screenshot is a Chrome extension that allows you to take a screenshot of the entire webpage and then interact by highlighting, adding text, drawing, etc. The screenshot with annotations can then be shared to Google Drive.