Aby Rafa

Show meta description in your homepage, single post and page. This plugin helps you to attract visitors and boost traffic. Just plug and play. (WordPress Simple SEO – Meta Description).
If you want to know how this plugin works, right click on your page and then select view page source. You will see your meta description between the header tag.
<ul>
<li><a href="http://wp.labnul.com/plugin/one-meta-description/" rel="nofollow ugc">Plugin Homepage</a></li>
</ul>

One Meta Description

Show meta description in your homepage single post and page. (Wordpress Simple SEO - Meta Description).

juust

Serp Dashboard takes your 3 top blog tags, makes any combination and queries Google.
You can add a custom search and schedule your searches.
features :
<ul>
<li>standard 3 tag permutation</li>
<li>queries google in any language</li>
<li>enter custom searches</li>
<li>schedule searches</li>
<li>jquery ajax admin page</li>
<li>automated (uses ?shutdown? hook to trigger searches)</li>
<li>uses its own tables</li>
<li>preconfigured, runs on activation</li>
<li>clean uninstall on deactivation</li>
</ul>

Serp Dashboard

Serp Dashboard helps you track your blogs rank in the search engine.

One Meta Description vs Serp Dashboard