gozerstudio

<a href="https://github.com/doginthehat/postinpost" rel="nofollow ugc">Post In Post</a> provides an interface to import posts in other posts
Requires PHP 5.2 or higher, WordPress 3.3 or higher.
Features:
<ul>
<li>Customisable per post type</li>
<li>Import post content inline or as a shortcode</li>
<li>Import full or excerpt post content</li>
<li>Safety mechanism again infinite nesting of posts.</li>
</ul>

Post In Post

Jesper Johansen (jayjdk)

This plugin, Jayj Quicktag, allows you easily to add custom Quicktags to the post, page, or a custom editor.
It adds a settings page where you can add all the Quicktags you want (see Screenshots)
It supports both import and export of your Quicktags so you easily can add them to another WordPress install.

Jayj Quicktag

Allows you easily to add custom Quicktags to the post editor.

Post In Post vs Jayj Quicktag