Webnow

WebNow Emoji Reactions enables quick, engaging reactions for your site visitors by injecting an emoji reaction bar into single post views.
Key features:
<ul>
<li>Add emoji reaction buttons to single post pages.</li>
<li>Admin settings page to configure emojis, label text, display position, and which post types show reactions.</li>
</ul>

WebNow Emoji Reactions

Short Description: WebNow Emoji Reactions adds a one-click emoji reaction bar to posts, allowing visitors to express reactions using emojis.

Artberri

This plugin shows on the Dashboard the Technorati Reactions of your blog. With the WordPress new version (2.5) we have the possibility to add differents feeds to the dashboard, with this plugin you will show the technorati reactions without changing the Google Blog Incoming Links. This plugin will add the reactions to your Dashboard, because I think that Technorati’s reactions are good info too.
Comments, questions and bug reports are welcome: <a href="http://www.berriart.com/technorati-reactions-dashboard-plugin/" title="Berri Technorati Reactions on Dashboard" rel="nofollow ugc">http://www.berriart.com/technorati-reactions-dashboard-plugin/</a>

Berri Technorati Reactions on Dashboard

This plugin shows on the Dashboard the Technorati Reactions of your blog. It is a widget for the dashboard

WebNow Emoji Reactions vs Berri Technorati Reactions on Dashboard