digrart

This plugin generates breadcrumb navigation for all posts, pages, custom post types, categories, and taxonomies on WordPress. The breadcrumbs are fully customizable and support structured data formats such as Microdata and JSON-LD for better SEO.

dig Breadcrumb

Generate breadcrumb navigation for all posts, pages, custom post types, categories, and taxonomies on WordPress, considering their publication status.

Remy Perona

This contact widget comes with microdatas & microformats markup, so that search engines can use it in their search results. They can help display contact information about your business or yourself below your website in search results, and even a map with your location, to improve your local SEO.
The telephone & email are linked so that visitors can click on it and make a call (through mobile or skype) or send a mail from their computer or their mobile devices.
You can also display a static image map of your location, linking to the address’ Google Maps page, and display a download link for a vCard.
More informations on microdatas microformats can be found here :
<ul>
<li>http://schema.org</li>
<li>http://microformats.org</li>
</ul>
Feedbacks and suggestions for improvement are greatly appreciated ! You can go to github to help : https://github.com/Tabrisrp/rich-contact-widget
Rich Contact Widget requires PHP5 to work !
Credits for translation :
<ul>
<li>Slovak by <a href="http://webhostinggeeks.com/blog/" rel="nofollow ugc">WebHostingGeeks.com</a></li>
</ul>

Rich Contact Widget

A simple contact widget enhanced with microdatas & microformats tags for your local SEO

dig Breadcrumb vs Rich Contact Widget