Dougal Campbell

HeadMeta creates <code><meta></code> “description” or “keywords” tags for individual 
posts or pages. It can also create arbitrary <code><meta></code> or <code><link></code> tags. 
These are easily set on a per-post (or page) basis by simply adding Custom 
Fields.
See the Installation section for more detailed examples.

HeadMeta

Automatically add <link>, <meta> description and <meta> keywords to your HTML on a per-post (or page) basis.

Slobodan Manic

Dragan Nikolic

Alpha Brand Media

In September 2012, Google announced “news_keywords” meta tag which is intended to help Google News to properly classify content and make it more discoverable for users.
This plugin picks your posts’ tags and uses them to generate “news_keywords” meta tag. No need to set up anything, it’s all done automatically. If a post has no tags Google News Keywords meta tag will not be displayed. You can use up to ten Google News keywords, so don’t go too tag happy.
Read more about Google News Keywords meta tag here:
<ul>
<li><a href="http://thematosoup.com/reviews/google-news-keywords-from-tags-free-wordpress-plugin/" rel="nofollow ugc">How to Add Google News Keywords to WordPress Posts</a></li>
<li><a href="http://searchengineland.com/google-announces-news-keywords-metatag-133759" rel="nofollow ugc">Google Announces A Meta Keywords Tag Just For News Articles</a></li>
<li><a href="http://googlenewsblog.blogspot.com/2012/09/a-newly-hatched-way-to-tag-your-news.html" rel="nofollow ugc">Announcement post at Google News Blog</a></li>
</ul>
<h3>Credits</h3>
Banner image – http://www.fotopedia.com/items/flickr-2054107736

Google News Keywords from Tags

Google News Keywords from Tags uses your post tags to insert Google News keywords meta tag to your posts.

HeadMeta vs Google News Keywords from Tags