This light-weight plugin inserts an easy to use comment system below the post creation form so that your authors and editors can have secure and private discussions. It can greatly improve the user-experience of your authors and save you the trouble of sending emails back and forth.
Features:
Gravatar Support: It automatically fetches and displays the user's profile image from
Gravatar.com.
Security: Only administrators, editors and the post author can leave comments. Similarly, checks are in place to ensure that a user can't edit or delete the comments created by someone else.
Elegant & Intuitive Interface: The comment interface is really simple and and all the plugin features are powered by AJAX. In other words your users will not have to save the post every time they want to create a new comment.
Please note that the comments metabox will not be visible on the 'New Post' page.