pluginsforall

<p>An easy way to add meta keywords to your posts and pages. Just put the keywords in the text field of each post or page and they will appear when the post or page is displayed.</p>
<h3>Keyword Research</h3>
<p><a href="https://localruler.com" rel="nofollow ugc">Get keywords at localruler.com</a></p>


Local Ruler Meta Keywords Manager

An easy way to add meta keywords to your posts and pages.

Erunafailaro

<p>The plugin adds a meta-tag to the html-header-part of your blog. This meta-tag contains keywords that describe the contents of the html-page. Adding this kind of meta-tag is one part of the job of optimizing your blog for search engines. To learn more about search engine optimization, I recommend reading and understanding these articles:</p>
<ul>
<li><a href="http://www.geek-notes.com/wordpress/25/optimize-wordpress-for-search-engines" title="About SEO at geek-notes.com" rel="nofollow ugc">about SEO at geek-notes</a></li>
<li><a href="http://www.devlounge.net/articles/plugins-for-a-search-engine-friendly-wordpress-blog" title="About SEO at devlounge.net" rel="nofollow ugc">about SEO at devlounge</a></li>
</ul>
<h3>Plugin Homepage</h3>
<p>The complete documentation is located at my <a href="http://www.weinschenker.name/wptags-4-metakeywords/" title="Plugin-homepage" rel="nofollow ugc">website</a></p>


WPtags 4 MetaKeywords

This is a tiny, lightweight plugin I wrote to use the new native tagging from WordPress 2.3+ to automatically create a meta-keyword-tag for my blog.

Local Ruler Meta Keywords Manager vs WPtags 4 MetaKeywords