Boone Gorges

Requires WordPress 3.0+ Network Mode.
Allows blog administrators to add multiple users to blogs at a time, using only a list of email addresses. When the specified email address matches an existing account, the account will be added as a user on the blog. Otherwise a new account is created and the new user added with the specified role. Based on DDImportUsers.
The plugin determines username automatically from the email address. For example, the email address bgorges100@example.com will produce the email address bgorges100. For that reason, this plugin works best when used in schools or organizations with official, unique email addresses.
When BuddyPress is installed, the welcome email will also include a link to the new user’s Edit Profile screen.
This plugin was developed for Blogs@Baruch of Baruch College’s Bernard L Schwartz Communication Institute. http://blsciblogs.baruch.cuny.edu

Simple Import Users

Allows blog administrators to add multiple users to blogs at a time.

Benoti

Add thumbnail column to plugins displays thumbnails for WordPress plugins on the plugins list page, on admin (wp-admin/plugins.php). 
Brozzme Add Plugins Thumbnails would help to easily identify plugins. Add your own thumbnails for premiums or personal plugins. 
Just activate plugin to see thumbnail.
Options
<ol>
<li>Icon width and height</li>
<li>Round icon</li>
<li>Reset transients</li>
<li>Transient expiration</li>
<li>Add your special thumbnails</li>
</ol>
Behaviour
<ul>
<li>thumbnail from wordpress.org repository</li>
<li>thumbnail fallback with text, random colors or your own thubnails</li>
<li>specials links to the thumbnails</li>
<li>transients</li>
</ul>
<a href="https://brozzme.com/" title="Brozzme" rel="nofollow ugc">Benoti</a> and <a href="https://www.wpserveur.net/?refwps=221" title="WPServeur WordPress Hosting" rel="nofollow ugc">WPServeur</a>.

Brozzme Plugins Thumbnails

Good idea and work fine. It's really nice and a quickier way to visualize plugins list :)

Good idea and work fine

Bien pratique, on identifie bien plus vite le plugin que l'on cherche, bravo.

Pratique, bien vue.

Add thumbnail column to plugins list table in the admin plugins page even they are not in the repository.

Simple Import Users vs Brozzme Plugins Thumbnails