utcwebdesign

Simple-Custo-taxo (Simple Custom Taxonomy) is a simple (as the name suggests) plugin that adds an extra taxonomy option for your posts and can be added to your site by adding the widget to your sidebar.
Simply create categories in the ?custom categories? section that will now appear in your Posts main menu and add posts to that category as you normally would. The widget then creates an unordered list of your custom taxonomies. Simple.
For more information go to <a href="http://www.utcwebdesign.co.uk/blog/development/instructions/simple-custo-taxo-wordpress-plugin" rel="nofollow ugc">http://www.utcwebdesign.co.uk/blog/development/instructions/simple-custo-taxo-wordpress-plugin</a>

Simple-Custo-Taxo (Simple Custom Taxonomy)

Adds an extra taxonomy option for your posts and add to your site by using the widget in your sidebar.

Guillermo Garcia

“Taxonomy Extra Fields” is a plugin for create and manage your own custom fields for all public taxonomies of WordPress (natives or created by the owner), directly from admin interface.
Thanks to: 
* Twig <a href="http://twig.sensiolabs.org/" rel="nofollow ugc">http://twig.sensiolabs.org/</a> 
* jQuery (Noty) v2 <a href="http://ned.im/noty/" rel="nofollow ugc">http://ned.im/noty/</a> 
* Daniel Eden for ‘animate.css’ <a href="https://daneden.github.io/animate.css/" rel="nofollow ugc">https://daneden.github.io/animate.css/</a> 
* Font Awesome <a href="http://fontawesome.io/" rel="nofollow ugc">http://fontawesome.io/</a>
<h3>Future Goals</h3>
<ul>
<li>Add new field types: geoposition…</li>
<li>Add Shortcodes and Frontend/Backend outputs</li>
<li>Add new fields options: multiple</li>
<li>Create/manage/delete new taxonomy</li>
<li>Support for non-ajax functions.</li>
<li>Add javascript validation to add/edit term form</li>
</ul>

Taxonomy Extra Fields (BETA)

Add your own custom fields to all wordpress taxonomies, easily and efficiently, directly from admin UI.

Simple-Custo-Taxo (Simple Custom Taxonomy) vs Taxonomy Extra Fields (BETA)