Stephanie Leary

This widget will list random posts from a chosen category. You can choose how many posts to display, and whether to show the excerpt or the full content in addition to the post title. You may also link the widget title to the category archive if you like.
<h3>Translations</h3>
Belorussian (be_BY) by <a href="http://fatcow.com" rel="nofollow ugc">FatCow</a>. 
Romanian (ro_RO) by Web Geek Science (<a href="http://webhostinggeeks.com/" rel="nofollow ugc">Web 
Hosting Geeks</a>)
If you would like to send me a translation, please write to me through <a href="http://sillybean.net/about/contact/" rel="nofollow ugc">my contact page</a>. Let me know which plugin you’ve translated and how you would like to be credited. I will write you back so you can attach the files in your reply.

Random Posts from Category

A widget that lists random posts from a chosen category.

Mark (podz)

Displays random psots on the sidebar of your blog, ideal for keeping visitors on your site longer and offering more reading.
This widget is also ideal for SEO as it increases the number of pages interlinked on your site, helping the search engine spiders crawl your site more efficiently.
Features:
<ul>
<li>configurable number of displayed records;</li>
<li>conclusion quote, or just the title;</li>
<li>display in a list or any other form (the tags are set).</li>
</ul>

RandomPosts Widget

Displays random psots on the sidebar of your blog, ideal for keeping visitors on your site longer and offering more reading.

Random Posts from Category vs RandomPosts Widget