Four Nodes

<p>Simple plugin to display random posts on your wordpress blog. Plugin provides a widget to display random posts in sidebar.<br />
Also comes with a shortcode [randomposts] to include on pages.</p>
<ul>
<li>Easy to install</li>
<li>Picks Random Posts</li>
<li>Ability to select from specific category</li>
<li>Limit number of posts</li>
<li>Shortcode support</li>
</ul>


FourNodes Random Post

Displays Random wordpress posts in a sidebar widget. Also, provides shortcode to display random posts on pages.

Ady Romantika

<p>This simple plugin is a widget that displays a list of random posts on your widgetized sidebar.</p>
<p>It supports multiple instances with WordPress 2.8 and above.</p>
<h3>Configuration</h3>
<ul>
<li>Widget title: the title of the widget</li>
<li>List types: ul for bulleted list, p for paragraph, br for paragraph with line breaks</li>
<li>Post count: Number of random posts you would like to be displayed</li>
<li>Category: Only this category will be selected as the source</li>
</ul>


Random Posts Widget

This simple plugin is a widget that displays a list of random posts on your widgetized sidebar. It supports multiple instances with WordPress 2.

FourNodes Random Post vs Random Posts Widget