John Sear

Adds the Google-specific metatag “news_keywords” with Post Tags into wp_head() to improve your chances of appearing in Google search results for relevant queries. See also http://support.google.com/news/publisher/bin/answer.py?answer=68297 🙂

News Keywords

Still Works

Adds easily the Google-specific metatag "news_keywords" with Post Tags into wp_head().

Wander Lima

Simple plugin that put description and keywords for all pages and posts of your blog and clean unnecessary info in wp_head() for secure reasons.
<ul>
<li>Keywords: user default keywords Tags</li>
<li>Description: user default Description</li>
<li>Remove: rsd_link, wlwmanifest_link, wp_generator, start_post_rel_link, index_rel_link, adjacent_posts_rel_link</li>
</ul>
Mtags Lite languages: English and Portuguese (Brazil).
For more information visit the <a href="http://plugins.wanderlima.com/" rel="nofollow ugc">Documentation Page</a>.
<h3>Upgrade</h3>
<ul>
<li>New options, now you can decide if wanna list post terms + default tags and same with post description. </li>
<li>Select what you want to remove from your rsd_link, wlwmanifest_link, wp_generator, start_post_rel_link, index_rel_link, adjacent_posts_rel_link</li>
<li>Code optimezed.</li>
</ul>
<h3>Usage</h3>
After the installation, Mtgas Lite add a top level “Mtags Lite” menu to your WordPress Administration.
<ul>
<li>
The Mtags Lite page lets you update your Keywords and Blog Description. 
 – Keywords: Comma-separated keywords (255 chars limit). 
 – Description: Blog´s description (255 chars limit). 
 – Update: Update time, be honest or search engines can do restrictions to your Blog.
</li>
<li>
The Options page lets you decide the plugin behaviour. 
 – Keywords: Post Tags / Default Tags / Post Tags + Default Tags. 
 – Description: Post Excerpt / Default Excerpt / Post Excerpt + Default Excerpt. 
 – Aditional options: Select what you want to remove from your rsd_link, wlwmanifest_link, wp_generator, start_post_rel_link, index_rel_link, adjacent_posts_rel_link.
</li>
</ul>

Mtags Lite

Simple plugin that put description and keywords for all pages and posts of your blog and clean unnecessary info in wp_head() for secure reasons.

News Keywords vs Mtags Lite