MaikelM

Manage and display links on a WordPress site. Plugin uses custom types, so exporting is very easy. 
To display links in a post or page use the following short tags:
[links cat=”name of category”]
[SHOWLINKS] for displaying all links
A simple option to export links per category is possible using the overview screen: 
Click “All Link Items” -> Click on the link Category you want to export -> [OPTIONAL, but recommended] Select “Title” to alphabetize your export list -> Select “Bulk actions” and chose the Export to xHTML -> Click “Apply” Now you can save you selection. Use pandoc.org to convert your selection to markdown or another format if needed.
This Plugin has a “broken link” check functionality. 
The Broken checks can take a while with a significant number of links. The screen stays blanc during progress. note: No progress bar is shown.
See https://www.bm-support.org/innovation-links/ for a live demo.
How does it work? 
This module makes use of Custom Post Types with non hierarchical catalogue option. So you can give links one or multiple tags. 
Tags works great for retrieving or exporting only certain types of links. 
If all tags for a link are deleted, the link still exist. This is default WP functionality. Since this plugin in built on using default wordpress hooks, 
exporting and importing links can be done used as with post or pages.

Simple Link Library

Manage your link collection in a simple way.

Patrick Daly

Mike Manger

adamkrawiec

Create a library of reusable terms (strings) and display their contents anywhere on your site with a shortcode.
Library lets you create a library of reusable terms (or strings) without any code necessary and access a term’s content with a shortcode.
You can add a term (just like you’d add a post or page) called “Copyright Line” and its content could be “©2014 Your Company” and then use that anywhere on the site with <code>[library term="copyright-line"]</code> or <code><?php do_shortcode( '[library term="copyright-line"] ); ?></code>.
Because the library terms are a post type they inherit WordPress features like revision history, draft/scheduled/published, ability to change the term slug, full HTML, and so on.
Business Cases
These are real-world examples of how this plugin is being used or could be used. Each of these uses a shortcode to display the most up-to-date version of a term’s content.
A financial institution is advertising an interest rate across many pages on a large website. There are instances of this percentage in content and in templates. Within a matter of seconds all of these numbers can be changed rather than crossing your fingers and hoping you caught all of the rates.
In order to quickly change the price of a fluctuating product a company put their price in a term to update across the whole site.
A health insurance company uses the same disclosures on many pages and UI contexts and keeping them compliant with changing regulations was difficult until they kept them stored in the Library.
The copyright line in the footer of a website might change sometimes to reflect a new year, a new trademark, new ownership, etc.
<a href="https://github.com/developdaly/library" rel="nofollow ugc">Contribute on Github</a> | <a href="https://github.com/developdaly/library/issues?labels=bug&milestone=&page=1&state=open" rel="nofollow ugc">Report Bugs</a>

Library

Create a library of reusable terms (strings) and display their contents anywhere on your site with a shortcode.

Simple Link Library vs Library