Kaizena allows you to say goodbye to the red pen by leaving voice comments on student writing. It makes for better and easier feedback. The creators of Kaizena made it so that you and your students can have a two way conversation. You can also tag comments and apply them directly to your rubric. Finally, you can create vocal feedback comments that you use over and over.
Kaizena also created a slideshow and shared it for Technology Coaches to shae with staff. Here's a link. Kaizena Introduction.
Kaizena Tutorial This Google Slideshow by Jennifer Bloomingdale will lead you everything you could possibly need to know about Kaizena with step by step instructions and embedded videos.
Track and Rate Skills Indiana Jen breaks down how to track and rate skills and relate them to your rubic in Kaizena.
Create a custom URL that students can post assignments to asking for feedback. Greg Kulowiec of EdTechTeacher.org explains some cool features in this guest post on Free Technology for Teachers including how to create a custom URL that students can use to submit assignments for Voice Feedback comments. (This is cool if you don't want to make feedback optional.)
Need Assitance? Kaizena on Google+ or @KaizenaHQ on Twitter Both are very responsive.