Michael

In this plugin you can set an individual title and description for each page and post and they will placed in the header of the page.
Additionally the uft-8 charset is set.

mst_meta

Plugin, which sets meta-title and meta-description like you give it for post or page.

krishna711

Plugin now support custom taxonomy. Tested with Woocommerce, FoxyShop and WP-ECommerce
Localization support added.
Fixed meta title bug in 2.1. Thanks to phil who reported this bug. 
Added meta tags support for tag pages.
Allow you to add custom meta tags for category and tag pages. This plugin specially designed to work with All In One SEO plugin. If you are using other seo plugin such as HeadSpace2 or SEO Title Tags plugin then this plugin is not for you because this plugin already supporting meta tags for category pages.
Note before upgraded: 
Title tags implemented in a completely new way. If you are previous user and want to upgrade then you need to edit all-in-one-seo-pack again. Old editing will not work with this version. see installation tab for more details.
Version 1.1 optimized for wordpress 3.0 and above. Do not upgrade if you are using wordpress version earlier then 3.0. 
Peoples are using wordpress lower then 3.0 should use 1.0 version.
<h4>Translators</h4>
<ul>
<li>Russian (ru_RU) – Sergey Yakovlev</li>
</ul>
<h3>Follow Me</h3>
Follow me on Twitter to keep up with the latest updates <a href="http://twitter.com/balakrishna/" rel="nofollow ugc">Bala Krishna</a>

Category SEO Meta Tags

Plugin now support custom taxonomy. Tested with Woocommerce, FoxyShop and WP-ECommerce

mst_meta vs Category SEO Meta Tags