KJ Coop

<p>This plugin will display a given number of random blogroll categories to show.<br />
It will show all the links in those categories.</p>
<h3>Usage</h3>
<p>Unless you’ve changed some defaults, your blogroll is most likely displayed by<br />
the following line of code in wp-content/themes/[your theme]/sidebar.php:
    </p>
<p>The simplest way to display a random category is just by replacing that line<br />
with a call to blogroll_random_category:
    </p>
<p>If you want to include a link to the whole blogroll, you can create a page in<br />
wordpress using the links template. Note the permalink. If you’ve already got a<br />
list of your pages in the sidebar, you’re in business. Otherwise you can add one<br />
with the following line of code:<br />
    <a href="[your permalink]" rel="nofollow ugc">See complete blogroll</a></p>
<p>If your blogroll is not set to be categorized, or if there is only one category,<br />
it will return the whole thing untouched.</p>
<h3>Advanced</h3>
<h3>Showing multiple categories</h3>
<p>If you want multiple categories returned, you can send the function that number.<br />
For example:</p>
<p>will return 5 randomized categories. If you only have 4 categories, it will<br />
return all of them in a random order.</p>
<h3>Retaining arguments sent to wp_list_bookmarks</h3>
<p>If you’re sending arguments to wp_list_bookmarks, you can send those to<br />
blogroll_random_category and it will pass them along to wp_list bookmarks. In<br />
this example, we’re showing all categories except #23:
    </p>
<p>The change below will show five random categories, none of which will be #23. If<br />
you only have four categories, this will return the three that are not #23:
    </p>
<h3>To show one category all the time and the rest randomize the rest</h3>
<p>In the sidebar you can explicitly call that category. When only one category is<br />
selected, this plugin knows to return it as it is. Any subsequent calls to<br />
blogroll_random_category ought to be instructed to exclude it in order to avoid<br />
the possibility that it happens to be randomly selected:</p>
<pre><code><?php wp_list_bookmarks('category=23'); ?>
<?php blogroll_random_category(5, 'exclude_category=23'); ?><h3>1.0</h3>* The first version.<h3>1.5</h3>* Whereas this plugin previously altered the behavior of wp_list_bookmarks in a
</code></pre>
<p>way that made it impossible to see the whole blogroll. Now it uses a separate<br />
  function call so that in some instances you can see random categories, but in<br />
  others you can see the whole blogroll.<br />
* Now possible to return multiple random categories without separate function<br />
  calls, thus eliminiating the possibility that two of the random categories<br />
  will be the same.</p>
<h3>1.5.1</h3>
<ul>
<li>The leading closing li tag was not actually getting trimmed off due to<br />
bad copying and pasting. That has been resolved.</li>
</ul>
<h3>A personal request</h3>
<p>If you use/enjoy this plugin, I’d love to hear from you. You’re under no<br />
obligation, but I’d enjoy knowing that somebody out there is enjoying my work.<br />
Promptly returning e-mail is not my strong suit, so you may never get the<br />
courtesy of a reply, but you can rest assured that I appreciated your effort.</p>
<p>I can be reached at kj@kjcoop.com.</p>


Random Blogroll Category

This plug in will select one or more random blogroll categories to show.

JohnnyPea

<p>Simple widget based on the default Links widget. It displays random links on your website.</p>
<p><strong>I am open to suggestions to improve the plugin !</strong></p>


Rotating Links Widget

This plugin add widget which displays random links on your website.

Random Blogroll Category vs Rotating Links Widget