Ivan Storck

The <a href="http://www.sustainablewebsites.com" rel="nofollow ugc">Sustainable Websites</a> WordPress Subcategories Widget displays all subcategories on a WordPress category archive page.
The widget will not show un-necessarily on pages or posts.
This widget is a useful navigation feature that will help your web site visitors drill down into your category hierarchy to find the right category. It is completely style-able with CSS. It’s also good for search engine optimization (SEO) to help your site’s link structure be easily crawl-able.
It’s a simple widget that does exactly what it says! Drag to your sidebar to activate.
Plugin homepage: <a href="http://www.sustainablewebsites.com/wordpress-subcategories-widget" rel="nofollow ugc">WordPress Subcategories Widget</a>
If you have any suggestions please email wordpress (at) sustainablewebsites (dot) com

SustainableWebsites WordPress Subcategories Widget

This WordPress Subcategories Widget displays all subcategories on a WordPress category archive page.

S Abdullah Prem

Displays pages or posts from a category, excluding the current one, with options for list styles: plain, bullet, or numbered.
<h3>License</h3>
This plugin is licensed under the GPLv3 (or later) license. You can freely use, modify, and distribute this plugin under the terms of the GPLv2 license. For more information about the GPL license, please visit: https://www.gnu.org/licenses/gpl-3.0.txt

Category Post Page List Widget

A widget to list category-related pages or posts in the sidebar, excluding the current page or post, with options for numbered, bullet, or no list for …

SustainableWebsites WordPress Subcategories Widget vs Category Post Page List Widget