ZmeyNet

If you have good Blog (with good content) and want to promote some good sites of yours/your clients 
this plugin is for you. LinkRobo do all job for you. 
You can input Urls(of your clients) and some keywords LinkRobo use for each url. 
LinkRobo turns such Keywords in your posts into SEO links. 
It has Monitor page and some Settings, your cat Export plugin settings for another blogs
Follow Installation guidelines
Please report any bug in the LinkRobo http://www.searchtified.com/contact/ 
starting your subject title with : “(LinkRobo 1.1)”.
Thank you

LinkRobo

LinkRobo turns Keywords into SEO links. It helps create a successful website SEO promotion campaign at your own blog.

Nicolas Marin Torres

With this plugin you will be able to take advantage of long tail keyword so you can learn more about your niche. 
From the list of keywords suggested you can put it directly in the title of your article or add it as a tag. It is very easy to use, from the same page to add item, it shows the widget in the left menu. 
This plugin helps you generate ideas for your post.
For example if you want to write a post about ‘Keyword Reasearch Tool’, these are tips that shows you:
<ul>
<li>
Keyword research tool
</li>
<li>
Free keyword research tools
</li>
<li>
Keyword research tool review
</li>
<li>
Google keyword research tools
</li>
<li>
Keyword research tool online
</li>
<li>
Keyword research seo tool
</li>
<li>
Bing keyword research tool
</li>
<li>
Keyword research tools 2013
</li>
<li>
Keyword research tools list
</li>
<li>
Free online keyword research tool
</li>
</ul>
This plugin makes to calls to seowp.es, the first one to create the URLs of the autocomplete service, and the second one to filter and complete the results. Does not require registration.
<a href="http://www.youtube.com/watch?v=vO64yHrHknA" title="YouTube" rel="nofollow ugc">Watch a demo</a>

WP Keyword Suggest

This SEO plugin offers keyword suggestions, taken from autocomplete google, yahoo, bing... up to 250 keywords ideas

LinkRobo vs WP Keyword Suggest