Mario Peshev

WARNING: This script alters the database content so use at your own responsibility! Backup your database first.
Shortcode Freezer. If you have a website with content based on shortcodes 
and this content generates some static data (i.e. authors, pricing, buttons and other listing that just provides html markup with a ‘short code’), 
then feel free to convert that to the static values before switching themes. This would evaluate the shortcodes and generate the HTML markup and replace the database posts with the evaluated content.
Keep in mind that it would not work with dynamic listings that generate dynamic content – they would ‘freeze’ and will not be dynamic anymore.
You can switch themes without worrying about shortcode compatibility. Once the markup is generated and embedded into posts, your data would be visible and you can style the markup in the new theme.

DX Shortcode Freezer

Converting all static shortcodes to their static representation at the moment of generation. This plugin could alter your database posts.

indowp

This Plugins that makes your site SEO boosting by making your defaut description change everytime you add new post on homepage only. This plugins usefull for those running news site or you are an up to date blogger. 
Many others SEO Plugins doesnt have this feature, they just make keep static description and makes google bored if you have an up to date blog.
<h4>Features</h4>
<ol>
<li>Automatically generate description on your homepage based on last 3 title post, this is real good for your site SEO.</li>
</ol>

Wp SEO Auto Generating Metatag Description

This Plugins that makes your site SEO boosting by making your defaut description change everytime you add new post on homepage only.

DX Shortcode Freezer vs Wp SEO Auto Generating Metatag Description