vinaysankhyan

iWR tooltip plugin lets you add tooltips to your post or page or in your template file via a shortcode 
[iwrtooltip title=”this will show in a tooltip”]hover over me to see tooltip[/iwrtooltip] or via a HTML Tag 
<a class=”normalTip” title=”this will show in a tooltip” href=”#”>hover over me to see tooltip</a>

iWR Tooltip

iWR tooltip plugin lets you add tooltips to your post or page or in your template files.

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.

iWR Tooltip vs WP-TagTip