Igor Golovanov

WP Term Metadata Plugin for retrieving and manipulating metadata of term objects. Metadata for 
an object is a represented by a simple key-value pair. Objects may contain multiple metadata 
entries that share the same key and differ only in their value.
= Plugin provides new API functions:
<ul>
<li>add_term_meta() – Add meta data field to a term.</li>
<li>delete_term_meta() – Remove meta data matching criteria from a term.</li>
<li>get_term_meta() – Retrieve term meta field for a term.</li>
<li>
update_term_meta() – Update term meta field based on term ID.
</li>
<li>
add_term_taxonomy_meta() – Add meta data field to a term based on taxonomy name.
</li>
<li>delete_term_taxonomy_meta() – Remove meta data matching criteria from a term based on taxonomy name.</li>
<li>get_term_taxonomy_meta() – Retrieve term meta field for a term based on taxonomy name.</li>
<li>update_term_taxonomy_meta() – Update term meta field based on term ID and taxonomy name.</li>
</ul>

WP Term Metadata

WP Term Metadata Plugin for retrieving and manipulating metadata of term objects.

darrinb

Advanced Term Images gives users the ability to easily add and manage featured images for categories, tags, and custom taxonomies.
Update: As of version 1.0 this plugin no longer relies on the Advanced Term Fields framework. All functionality from that framework has been incorporated within this plugin.
<h4>Usage</h4>
Once you’ve installed and activated the plugin, you should see a new form field in your edit tags screen. (See the Screenshots tab.)
Use the native WordPress media picker to select a featured image for your term.
<h4>Also Check Out:</h4>
<ul>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-colors/" rel="ugc">Advanced Term Colors</a></li>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-icons/" rel="ugc">Advanced Term Icons</a></li>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-featured-images/" rel="ugc">Advanced Term Images</a></li>
<li><a href="https://wordpress.org/plugins/advanced-term-fields-locks/" rel="ugc">Advanced Term Locks</a></li>
</ul>

Advanced Term Images

Easily add featured images to your categories, tags, and custom taxonomy terms. Supports all taxonomies!

WP Term Metadata vs Advanced Term Images