ehsan4php

With Contact Form active under Jetpack (1.3 or higher) this plugin will add a 
new option in the “Feedback Management” area to reply to each message sent.
When a visitor send an email using the Contact Form, the message is sent to 
email of the site’s owner as well as stored under “Feedback Management” area. 
This plugin lets users to reply directly from WP Admin using nice text editor.
The emails are sent in HTML format and user can change the name and email 
address the mail will be sent from.

Feedback Extended

This plugin requires Jetpack 1.3 or up with Contact Form plugin active. This plugin will enable users to reply to feedbacks from the admin panel.

Louy Alakkad

This plugin adds a new widget that displays recent comments with the author avatar.

Extended Recent Comments

Add a recent comments widget that shows Gravatars.

Feedback Extended vs Extended Recent Comments