d3wp

Creates “Give Feedback” button in the right bottom corner of the post page. After click, redirects user to the comment box. 
This technique helps you to increase the number of user feedback
Uses jQuery for setting transparency when you move your mouse over the button (animated).
<h3>Feedback</h3>
http://www.webdev3000.com/

WD3K Give Feedback

Creates "Give Feedback" button in the right bottom corner of the post page. After click, redirects user to the comment box.

m1rcu2

MySmark plugin allows your visitors to make powerful comments to your content using emotional tags and sharing them directly in Facebook and Twitter. With MySmark each reader of your blog can post a comment, opinion or recommendation, give an emotional feedback using a personalised 
 tool and a simple interaction. For more information: <a href="https://www.mysmark.com/" title="MySmark" rel="nofollow ugc">MySmark.com</a>

MySmark Plugin

Upgrade comments and sharing of your blog and engage your visitors with emotional tagging via MySmark.

WD3K Give Feedback vs MySmark Plugin