LordPretender

<p>This plugin allow you to add files into your media library without having to upload them. So, you will be able to share, for example, your files into your Google Drive.<br />
This also save you steps to download the image to local computer and upload again to your own WordPress.</p>
<h4>Features</h4>
<ul>
<li>Automatically downloads and adds the file to the media library.</li>
<li>After the uploading is successful, you are redirected to the edit screen</li>
<li>A new dropdown list is available in the media library to let you display only uploaded files, not uploaded files, …</li>
</ul>


Add Media from URL

large chunks of code taken from the much better original here:

https://en-au.wordpress.org/plugins/lh-add-media-from-url/

IMO it unethical to use this plugin

A crappy clone of the original

Let you add media files into your media library without having to upload them.

damies.softs

<p>Hierarchical Bookmark System allows saving and categorizing bookmarks in a hierarchical fashion easily within the wordpress.<br />
Hierarchical bookmark system is a very useful and effective plug-in allowing to bookmark favorite websites. The plug-in adds your preferred websites to bookmarks within the wordpress. You can also arrange your all bookmarks in a hierarchical fashion where all bookmarks are sorted according to their categories. Other than this, managing your bookmarks is also made easy by this amazing bookmark plug-in. It avails the users with a custom post type named Bookmark from where the bookmarks can be managed in similar fashion like native posts. This Hierarchical bookmark system by D AMIES Technologies Pvt. Ltd. allows adding bookmarks directly from wordpress back-end.</p>
<p>Features:</p>
<ul>
<li>Very simple to use and manage bookmarks similarly to posts</li>
<li>Managing Bookmarks in Hierarchical fashion</li>
<li>Saving the bookmarks as draft</li>
<li>Adding description with every bookmark</li>
</ul>


Hierarchical Bookmark System

Hierarchical Bookmark System avails an eye catching interface to save and categorize bookmarks in a hierarchical fashion.

Add Media from URL vs Hierarchical Bookmark System