Floating Comments allows users to post comments to your blog through a fancy form that fallows them as they scroll down.
From the dashboard options you can change the plugin's form color and set its position as well.
This is the front view of the form, it'll be fixed to the top of the screen once it gets to it.
The form remains at hand so that you can post comments.
Once you've clicked the small form, the actual form is opened in order for you to write a comment.