AndrewZhang

Provide a widget to show the hot tags of your recent posts.
<a href="http://www.mashget.com/2008/09/18/wp-recent-tags-changelog/" rel="nofollow ugc">ChangeLog</a>
What’s Tag?
Tag is simply a word you can use to describe something, with WordPress, ‘something’ will be your posts or pages. It’s very easy to use, think this way, if you want to google your post, what keywords should you use, that’s it.
Why ‘Recent Tags’?
Giving an example:
Olympics were very hot about a month ago, and we might write many posts about this topic, then ‘Olympics’ was a very hot tag. But Olympics would not always the hot spot, right? It’s gone, and we might talk Elections now, so how to let the visitors get this, get what you’re talking about now?
Recent Tags! That’s the simplest way.
How to define ‘Recent’ and something you should know?
‘Recent’ is a problem? Yep, actually it is. Recent tags might be tags used in some recent posts, or it might be the tags used in some recent days, strictly speaking, they’re different, but most of the time, the difference can be very small. The point is when you see the tags, you do tell it is the ‘recent’ ones.
For performance considerations, this plugin will log your tags by days, that means it can tell you what and how many times a tag be used for a specific day, and what the hot tags in some recent days.
But for most of us, we don’t write posts very day, right? So there’s a problem here, if you ask hot tags in recent 2 days, you might get a empty box, as you didn’t publish anything. To solve this problem, this plugin will still ask to show the hot tags in some recent posts, but the calculation method will be:
Giving an example, to show the hot tags in recent 20 posts, it will get the date of the 20th post first, and calculate the hot tags since that day.
Worry about performance?
It’s possible to calculate the tag stat directly through wordpress tables, but the server usage will be extremely high, so this plugin creates a table in your database to track your tags by day. You can treat these data as some pre-calculation, if you’re not publishing posts every minute and every post gets lots of tags, I don’t think you should worry about this table.
Also, I think you may use the <a href="http://www.mashget.com/2008/09/01/wp-widget-cache-for-wordpress/" rel="nofollow ugc">WP Widget Cache</a> to cache the widget output

WP Recent Tags

Provide a widget to show the hot tags of your recent posts.

Arjan Olsder

Want to automatically create cornerstone content? WPA SEO Auto Linker helps get this done. Simply create a new keyword or a new phrase. The system will link that keyword or phrase to your chosen dofollow URL. Through the settings, it is easy to finetune the workings of this plugin. For performance, it is best to make use of a caching engine.
“Using this plugin didn’t just help define cornerstone content in our SEO strategy, it also increased pageviews by 18%. The average visitor spends 13 seconds more on our website.” – Roelof van Doorn, technical editor at GadgetGear.nl
While our plugin has been without support for three years, we have seen a lot of similar plugins moving in. Please note we will not be adding fancy interfaces or click tracking. The reason is we want to remain the fastest tool on the market. Click tracking takes a heavy hit on your database while creating a smooth graphical interface will lead to code bloat and the security risks that come with maintaining huge heaps of code. We just don’t want that.
<h3>Credits</h3>
WPA SEO Auto Linker plugin is based on the SEO Auto Links 0.5 plugin by Maarten Brakkee. 
https://wordpress.org/plugins/seo-auto-links/
The SEO Auto links plugin is based on the SEO Smart Links 2.7.6 plugin by Vladimir Prelovac: 
https://wordpress.org/plugins/seo-automatic-links/
Inspiration for SEO Smart Links originated from the Autolink plugin by Chris Lynch 
http://www.planetofthepenguins.com/
<h3>License</h3>
This file is part of WPA SEO Auto Linker.
WPA SEO Auto Linker is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
WPA SEO Auto Linker is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with WPA SEO Auto Linker. If not, see <a href="http://www.gnu.org/licenses/" rel="nofollow ugc">http://www.gnu.org/licenses/</a>.

SEO Auto Linker

I will happy with this plugin and well replied on time. Now plugin compatible with UTF8 characters.

Work with UTF8 (GREEK) Language

SEO Auto Linker assists in creating cornerstone SEO content. This is not a full replacement for SEO plugins.

WP Recent Tags vs SEO Auto Linker