Oscar de Souza Dias

Get Remote URL Info adds a button to the TinyMCE editor, which helps adding information about remote URLs. It will open a popup where you can enter the URL and fetches the information (title, description and images) like Facebok or Google+. You can select the desired image as well. When you confirm, the image is uploaded to you server and a DIV with the information is added in your post. Because the information is added into the post, you can edit it as you want, customizing the way it is displayed.
This is the first version of this plugin. If people like it, I can improve by adding an admin page with options, some additional functionality and translations. You can give feedback in the <a href="http://oscardias.com/projects/get-remote-url-info/" title="Get Remote URL Info" rel="nofollow ugc">plugin page</a>.
<h4>Translations</h4>
Get Remote URL Info is available in:
<ul>
<li>English – default –</li>
</ul>

Get Remote URL Info

Fetches information about a remote URL and adds it into the post.

Dan Griffiths

Adds a robust third-party product system to Easy Digital Downloads. When activated, adds new fields to the Download Prices meta box allowing you to specify redirect details.
External Products is based on the extension of the same name by WebDevStudios.

Easy Digital Downloads – External Products

Was looking for exactly this: an option to add third party plugins on my own EDD shop. 

Perfect

Adds a robust third-party product system to Easy Digital Downloads

Get Remote URL Info vs Easy Digital Downloads – External Products