e-Comments is a free extension for Google Chrome that makes it possible to insert Common Core-aligned writing feedback comments in a variety of Google apps (Slides, Google Docs, and even PowerPoint).

To get started, open the e-Comments menu in your Google Apps.

The four switchable comment sets are for:

3-6 grades

6-9 grades

9-12 grades

College/workplace

You can customize the e-Comments menu with all the same options that are available in the e-Comments menu widget.

This extension also allows you to record a video, audio, or screencast of your comments. It even features the ability to link to other sources and websites.