turtlepod

<a href="http://genbu.me/plugins/fx-categories-widget/" rel="nofollow ugc">f(x) Categories Widget</a> will register a custom widget “Categories +” it’s just like WordPress default Categories Widget, but with taxonomy option just like in Tag Cloud widget.
Features:
<ol>
<li>Simple and easy to use.</li>
<li>Works flawlessly for multiple widget instances.</li>
<li>Select all build in taxonomy (such as category and tag) and all custom taxonomy.</li>
<li>Now you can display your Post Tags as list or drop down (not only as tag cloud).</li>
<li>The GPL v2.0 or later license. 🙂 Use it to make something cool.</li>
<li>Support available at <a href="https://genbu.me/contact-us/" rel="nofollow ugc">Genbu Media</a>. 
Notes for developer: </li>
</ol>
<h4>Github</h4>
Development of this plugin is hosted at <a href="https://github.com/turtlepod/fx-categories-widget" rel="nofollow ugc">GitHub</a>. Pull request and bug reports are welcome.

f(x) Categories Widget

soandso

denispishniak

SEO Custom Fields plugin allows you to add custom meta tags for category and tag pages. This plugin will be useful for you in case if your SEO plugin doesn’t support setting of meta tags for category and tag pages.
You can override the title and set meta description and meta keywords for category and tag pages.
It doesn’t demand spacial tuning or coding. Just usual installation

SEO Custom Fields

Plugin customized the title, add description and keywords for category and tag pages

f(x) Categories Widget vs SEO Custom Fields