Antonio D.

Daniil Zhitnitskii

amyrotos

Vasilis Georgoudis

WordPress gives you the ability to add metadata to your sites thus helping Google and other search engines to recognise it. The problem comes if you want to expand.
All in one metadata, extends the functionality of WordPress and gives you the flexibility to add more metadata in your sites, taking advantage of the schema markup.
https://github.com/my-language-skills/all-in-one-metadata
<h3>Disclaimers</h3>
The All in one metadata plugin is supplied “as is” and all use is at your own risk.
All in one metadata is under development. Version 1.0 is stable but is an start. Soon much more possibilities.

All in one metadata

Extended Metadata for Wordpress and PressBooks.

Aaron Queen

There are many sites that are crawling for user-generated reviews now, including Google Places and Google Local Search. WP Customer Reviews allows you to setup a specific page on your blog to receive customer testimonials for your business/service OR to write reviews about a product.
<ul>
<li>WP Multisite and Multiuser (WPMU / WPMS / WordPress MU) compatible.</li>
<li>All submissions are moderated, which means that YOU choose which reviews get shown.</li>
<li>Reviews are displayed to visitors in a friendly format, but search engines see the Schema.org microformat.</li>
<li>Multiple anti-spam measures to prevent automated spambots from submitting reviews.</li>
<li>Completely customizable, including which fields to ask for, require, and show.</li>
<li>Shortcodes available for inserting reviews and review form on any page or widget.</li>
<li>Works with caching plugins and custom themes.</li>
<li>Includes an external stylesheet so you can modify it to better fit your theme.</li>
<li>Reviews can be edited by admin for content and date.</li>
<li>Admin responses can be made and shown under each review.</li>
<li>Support for adding your own custom fields.</li>
<li>The plugin can be used on more than one page, and can be used on posts.</li>
<li>Supports both <code>Business</code> and <code>Product</code> review types.</li>
<li>Shows aggregate reviews microformat.</li>
<li>Fast and lightweight, even including the star rating image. This plugin will not slow down your blog.</li>
<li>Validates as valid XHTML 1.1 (W3C) and valid Microformats (Rich Snippets Testing Tool).</li>
<li>And much more…</li>
</ul>
Almost every new feature that has been added was due to the generous support and suggestions of our users. If you have a suggestion or question, do not hesitate to ask in our forum.
More information at: <a href="https://wordpress.org/plugins/wp-customer-reviews/" rel="ugc">WP Customer Reviews</a>

WP Customer Reviews

Allows your visitors to leave business / product reviews. Testimonials are in Microdata / Microformat and may display star ratings in search results.

All in one metadata vs WP Customer Reviews