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To help your WordPress installation be more optimized for search engines, this plugin will include a ‘noindex’ meta tag in the header of any duplicate posts. 
Robots will not index any posts with matching title tags, which is a known indicator of negative SEO. This is very useful for automated posting and working with a large amount of posts.

Noindex Duplicate Posts

This plugin will automatically add a 'Noindex' meta tag to posts that are a duplicate determined by the slug and preexisting post names.

Ivan Kristianto

Easily add JQuery Countdown easily to your page/post with one shortcode only
Example: 
 [wpc_countdown] Will show next 7 days countdown 
 [wpc_countdown targetdate=”2012-05-17″] format target date “Year-Month-Day” 
 [wpc_countdown targetdate=”2012-05-17-23-59-59″] format target date “Year-Month-Day-Hour-Minute-Second” 
 [wpc_countdown targetdate=”2012-05-17″ before=”
” after=”
“] => if you want to use wrapper.
See my article <a href="http://goo.gl/kvfwD" rel="nofollow ugc">WordPress Countdown Plugin</a> for details.
Other interesting stuff:
<ul>
<li>Check out the my other WordPress plugins or web development <a href="http://goo.gl/OHQNc" rel="nofollow ugc">My Portfolio</a></li>
<li>Want to optimize your WordPress blog? Check out the <a href="http://goo.gl/QedtH" rel="nofollow ugc">WordPress Optimization Article</a> Guide!</li>
</ul>

WordPress Countdown

Add JQuery Countdown easily to your page/post with one shortcode only

Noindex Duplicate Posts vs WordPress Countdown