StefanMz

Grouped Links Widget can use any number of widget instances to group links by their associated link categories. This adds a bit more CMS functionality to WordPress.
If the blogroll is grouped into link categories and each category contains internal tag references, then you can flexibly group link categories and put these link groups into your sitebar(s). This, of course, works with traditional external links put in a blogroll too.
Each group of link categories can be sorted by name acending or decending. If simple sorting doesn’t fit to your desired order to be appear in the sidebar, then create more than one link group and place them in the sidebar as you wish.
In order to adapt Grouped Links Widget to different HTML theme codes, HTML tags can be set for each link group and for each title within the link group. However, default values should work with most themes.
Grouped Links Widget is a simple widget, it mainly uses wp_list_bookmarks. Version 2.0 was completely refactored in order to adapt to the new WordPress 2.8 multi widget technique. If you want to add more functionality, don’t hesitate to modify the code. 😉
Grouped Links Widget’s homepage: <a href="http://groupedlinks.wordpress.com/" rel="nofollow ugc">http://groupedlinks.wordpress.com/</a>

Grouped Links Widget

Grouped Links Widget can use an unlimited number of widget instances to group links by their associated link categories.

Enej Bajgorić

ctlt-dev

ubcdev

Aleksandar Arsovski

This plugin allows users to display their WordPress links by category through custom fields.
The following gives a step-by-step setup overview:
<ol>
<li>Enable the plugin (check the installation tab)</li>
<li>Go to the page/post where you’d like to place your links/blogroll</li>
<li>Make sure that Custom Fields are visible (on the edit page or post page click on the “Screen Options” in the top right and make sure “Custom Fields” is checked off)</li>
<li>Under CUstom fields click on the enter new link</li>
<li>Enter an ID in the “Name” field – the plugin uses the ID “display_links” as a default</li>
<li>Enter the category name of the links you’d like to display in the “Value” field</li>
<li>Click on the “Add Custom Field” button</li>
<li>Enter the following shortcode into the post content area or the widget area you prefer: <code>[links_by_cat field_id="(ID previously entered in Name field goes here)"]</code>
<ul>
<li>Note that if you used “display_links” in the Name field, you do not need to enter the “field_id” parameter in the shortcode and can simply do: <code>[links_by_cat]</code></li>
</ul>
</li>
</ol>
The shortcode also supports many other parameters for ordering and structuring your links. All parameters on the list (except “category”) found on the following page are available: https://codex.wordpress.org/Template_Tags/wp_list_bookmarks#Parameters
Other parameter example:
<pre><code>[links_by_cat orderby="rating"] -- This is an example using the orderby parameter from the list. The links will now be ordered by their rating.
</code></pre>
<h4>Added in 1.0.1:</h4>
The ability to display all categories has been added to the shortcode. Simply add: 
 [links_by_cat display_all]
Many bug fixes have also been introduced in version 1.0.1 as well, so please upgrade.
Currently, only one category is supported per Custom Field entry; however, I am looking to update the plugin soon so that it supports multiple categories.

Display Links by Category

A simple shortcode plugin for displaying links by category through custom fields.

Grouped Links Widget vs Display Links by Category