betsyk

Missing crumbs? Find them with Breadcrumbs Everywhere! This plugin adds breadcrumb trail navigation to BuddyPress. Simple, just add one line of code to your template. You don’t need to use it, but there is an admin feature, too.
<h4>Included languages:</h4>
<ul>
<li>English</li>
<li>German (-DE)</li>
<li>French (-FR)</li>
<li>Spanish (-ES)</li>
<li>Italian (-IT) 
Dove photo credit: <a href="http://www.flickr.com/photos/boegh/5675587429/" rel="nofollow ugc">Boegh</a>.</li>
</ul>

Breadcrumbs Everywhere

Adds breadcrumb trail navigation to BuddyPress. Simple, just add one line of code to your template.

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.

Breadcrumbs Everywhere vs RDFa Breadcrumb