Nitin Yawalkar

RDFa Breadcrumb provide links back to each previous page the user navigated through to get to the current page or – in hierarchical site structures – the parent pages of the current one.
It gives you a new template tag called <code>rdfa_breadcrumb()</code> that you can place anywhere in your template files. It has inbuilt RDFa content markup, so this will help Google to recognize and display the breadcrumbs on search results as well.
Check out the screenshots.

RDFa Breadcrumb

An easy template tag for showing a breadcrumb menu on your site and on google search results with built in RDFa Markup.

jim912

This plugin adds the function to display breadcrumbs (topic path) navigation. You can use display styles, lots of parameters of styles and original plugin hooks of breadcrumbs navigation, and you can customize navigations flexibly.
<h4>Examples</h4>
Default 
Template Tag
<pre><code><?php if ( function_exists( 'bread_crumb' ) ) { bread_crumb(); } ?>
</code></pre>
Output sample
<pre><code><ul class="bread_crumb">
 <li class="level-1 top"><a href="http://www.example.com/">Home</a></li>
 <li class="level-2 sub"><a href="http://www.example.com/?post_type=seminar">Seminar</a></li>
 <li class="level-3 sub"><a href="http://www.example.com/?area=tokyo">Tokyo</a></li>
 <li class="level-4 sub tail current">WordBench Tokyo</li>
</ul>
</code></pre>
String types 
Template Tag
<pre><code><?php if ( function_exists( 'bread_crumb' ) ) bread_crumb( 'type=string' ); ?>
</code></pre>
Output Sample
<pre><code><a href="http://www.example.com/">Home</a> &amp;gt; <a href="http://www.example.com/?post_type=seminar">Seminar</a> &amp;gt; <a href="http://www.example.com/?area=tokyo">Tokyo</a> &amp;gt; WordBench Tokyo
</code></pre>
CSS Sample
<pre><code>.bread_crumb {
 margin:0;
 border-bottom:1px solid #eee;
 padding:0.8em 0 0.5em;
 clear: both;
 height: 20px;
 background: #f8f8f8;
}
.bread_crumb li {
 font-size:12px;
 color:rgb(180,180,180);
 float:left;
 /*margin-right:1em;*/
 list-style: none outside none;
}
.bread_crumb li:after {
 content : '>';
 padding-left:10px;
 margin-right:10px;
}
.bread_crumb li:last-child:after {
 content : '';
}
.bread_crumb li a {
 color:rgb(120,120,120);
}
.bread_crumb li.current {
}
</code></pre>
<h4>Special Thanks</h4>
English Translation:<a href="http://www.odysseygate.com/" title="Translation" rel="nofollow ugc">Odyssey</a>
<h3>Links</h3>
“<a href="https://wordpress.org/extend/plugins/ps-taxonomy-expander/" title="WordPress sitemap plugin">PS Taxonomy Expander</a>” makes categories, tags and custom taxonomies more useful.
“<a href="https://wordpress.org/extend/plugins/ps-auto-sitemap/" title="WordPress sitemap plugin">PS Auto Sitemap</a>” is a plugin automatically generates a site map page from your WordPress site. 
It is easy to install for beginners and easy to customize for experts. 
It can change the settings of the display of the lists from administration page, several neat CSS skins for the site map tree are prepared.
“<a href="https://wordpress.org/extend/plugins/ps-disable-auto-formatting/" title="WordPress formatting plugin">PS Disable Auto Formatting</a>” 
Stops the automatic forming and the HTML tag removal in the html mode of WordPress, and generates a natural paragraph and changing line.
“<a href="http://www.prime-strategy.co.jp/" title="CMS service with WordPress" rel="nofollow ugc">CMS service with WordPress</a>” provides you service that uses WordPress as a CMS.

Prime Strategy Bread Crumb

Adds the function to display breadcrumbs navigation.

RDFa Breadcrumb vs Prime Strategy Bread Crumb