chuoitaotau

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Description: 
A Related Posts plugin that is easy-to-use & highly customizable. Display list of related posts by tags & categories, let you decide number of related posts and select displaying content. Come together with two ready-built themes for your use!
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Features include:
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<li>Display related posts under posts with similar tags and categories</li>
<li>Custom number of related posts to display</li>
<li>Custom title, text size, and text color</li>
<li>Select content to display for each related post: post title, post thumbnail, author, create date, excerpts, and button Read More</li>
<li>Two ready-built themes for your use: Related posts with text-only and with thumbnail.</li>
<li>Related post slider: customizable number of posts visible at once</li>
<li>User can custom style for related posts</li>
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<li>Upcoming features:</li>
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<li>Responsive design</li>
<li>Related custom post types</li>
<li>Support widget</li>
<li>Custom post excerpts length</li>
<li>And more…</li>
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Quick related post

thumbnails are not displayed

Easy display Related Post under post by tags and category

eduardosada

WP-TagTip is an sexy way to show a related post of one specific tag with tooltips.
Please visit <a href="http://www.coders.me/wordpress/wp-tagtip" title="WP-TagTip" rel="nofollow ugc">the official website</a> for further details and the latest information on this plugin.
<h4>Licence</h4>
This plugins is released under the MIT, you can use it free of charge on your personal or commercial blog.

WP-TagTip

An sexy way to show a related post of one specific tag.

Quick related post vs WP-TagTip