Phillip.Gooch

Auto SEO is a simple way to add all your SEO header tags from a single interface. It will generate new meta tags, replacing any old ones your theme may add already, that are fully customized to target the audience you want. Don’t want to override everything? No problem, you choose what to override and on what post types to do it. Take the tedium out of SEO.
Note: because Auto SEO is designed to override existing meta tags when needed it works a bit differently than other SEO plugins and as such may not work on every theme. While it has been tested with a wide variety of different themes naturally it would be impossible to test them all. If your having trouble getting it to active on your site I’m more than willing to help, just let me know what theme your using and I’ll take a look, contact information inside the plugin.

Auto SEO

Auto SEO is a quick, simple way to add title, meta keywords, and meta descriptions to your site all at one from a single page.

Philipp Speck

This plugin will make it possible to use tags as <code>meta keywords</code>. Under <code>Pages</code> you will find a new meta box called <code>Keywords</code>. 
By activation the plugin registrates a separate taxonomy which is independent from post tags. 
Today’s search engines don’t use <code>meta keywords</code> as a criteria at all, but who knows for what they will be good in future 😉 
For me tagging is necessary to bring pages in relation and gives me the possibility to save my tags redundant in the database.
Features
<ul>
<li>Use post tags as <code>meta keywords</code></li>
<li>Registrates own <code>taxnomy</code> for pages</li>
<li>No coding needed</li>
<li>Language support</li>
</ul>
Related Links
<ul>
<li><a href="http://www.typomedia.org/wordpress/plugins/wordpress-meta-keywords/" title="Homepage of WordPress Meta Keywords" rel="nofollow ugc">Homepage</a></li>
<li><a href="https://wordpress.org/extend/plugins/wordpress-meta-keywords/changelog/" title="Changelog for WordPress Meta Keywords" rel="ugc">Changelog</a></li>
<li><a href="https://wordpress.org/extend/plugins/wordpress-meta-keywords/faq/" title="FAQ for WordPress Meta Keywords" rel="ugc">Questions</a></li>
</ul>
Localization
<ul>
<li>German translation by <a href="http://www.destio.de/" title="Designstudio, Philipp Speck" rel="nofollow ugc">Designstudio, Philipp Speck</a></li>
<li>Slovak translation by Branco Radenovich</li>
</ul>
Note: 
Before installing or upgrading new plugins, please backup your database first!

WordPress Meta Keywords

This plugin gives you the ability to set Meta Keywords in WordPress. Under pages it will registrate a separate taxonomy for keywords.

Auto SEO vs WordPress Meta Keywords