Purab

Boost your wordpress SEO: Full SEO features Meta Tags, webmaster tools settings, Social AuthorShip for Facebook, Twitter and Google Plus and XML sitemap
You can enter your meta keywords and description for your homepage.
This plugin will add different Meta description for each individual post as your excerpt of your post.
This will help your blog to rank better in google. You can easily increase your blog traffic using this plugin.
New Premium Features Added
WebMaster tool and meta tag added
Social AuthorShip meta Tags added for Facebook, Twitter and Google Plus
XML sitmap added
Following Sites are using SEO meta tags: 
Demo URL: 
http://wpapi.com
<a href="http://wpapi.com/how-to-use-seo-meta-tags-wordpress-plugin/" rel="nofollow ugc">Step by step installation instructions >></a>
Tested upto 4.0
<a href="http://wpapi.com/contact/" rel="nofollow ugc">Click here for customer support >></a>
<h4>Functionality</h4>
This plugin will add different Meta description for each individual post as your excerpt of your post.
<h3>Help</h3>
For help and support please contact us at contact [at] digcms.com 
<a href="http://wpapi.com/contact/" rel="nofollow ugc">Click here for customer support >></a>

Seo Meta Tags

Boost your wordpress SEO: Full SEO features Meta Tags, webmaster tools settings, Social AuthorShip for Facebook, Twitter and Google Plus and XML sitem …

Pitabas

NetTantra

It is hard to optimize micro pages (such as authors, tag, category, archive) through Meta Description unless you are familiar with source codes. However with Meta By Path tool, it’s easy. You can add or replace meta tags for pages under any URL. You will find three boxes inside the tool; URL, Name and Value. Enter the url, meta name/property and the content inside the respective boxes and the tool will do the rest for you. The tool will fetch the meta name/property from the source code and will add the value inside the content. In case the desired property name is not present, it will create the same inside the source code and will add the value into its content.
Features:
<ul>
<li>Easily add or replace meta tags for pages under any URL</li>
<li>Easily add content to meta names and properties</li>
<li>Swiftly replace existing meta content with a new one</li>
<li>Auto create meta properties inside the source code</li>
</ul>
<h4>About the Developer</h4>
This Plugin is developed by NetTantra Technologies – a team of open-source enthusiasts and WordPress experts. NetTantra designers and developers work relentlessly to bring code to life so that WordPress users don’t have to do the hard work.
For professional support, you can get in touch with the NetTantra Team at <a href="mailto:wordpress@nettantra.com" rel="nofollow ugc">wordpress@nettantra.com</a>
<h3>Plugin Support</h3>
<a href="wordpress@nettantra.com" title="WordPress Plugins and Support Services" rel="nofollow ugc">Meta By Path</a>

Meta By Path

Meta By Path facilitates for easily replacing an existing value inside a meta content with a new one. Also, it can create new meta names and propertie …

Seo Meta Tags vs Meta By Path