swergroup

This plugin let plugin and theme authors to display their work in their main WordPress. It provides some helpers:
<ul>
<li>two custom post types: plugins and themes</li>
<li>SEO-friendly URLs</li>
<li>fetch (and cache in transient) plugin/theme info from the latest readme.txt file</li>
<li>fetch (and cache in transient) rating / support / downloads info</li>
<li>plugin info from readme file as custom post metadata</li>
</ul>
Planned in the next release:
<ul>
<li>widgets with plugin info</li>
<li>shortcodes</li>
</ul>

Developer Showcase

Plugin/theme showcase plugin for WordPress plugin/theme authors and developers.

The minimum code required that allows the user configure and add an shortcode to the page contents using a popup form that is accessible through the TinyMCE content editor.
Suitable for developers that wish to provide their users with an easy way of adding your custom shortcodes. The plugin provides an abstract shortcode class that can be extended and registered into the shortcode factory. Which will result in the shortcodes showing up in the dropdown menu.

Minimal Shortcode UI

Allows theme/plugin developers to make their custom shortcodes easily accessible to their users through a modal dialog from the content editor.

Developer Showcase vs Minimal Shortcode UI