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

darrinb

Easily include raw markup languages (HTML, CSS, PHP, etc.) in comments using custom quicktags. No need to encode, the filter does it for you. Creates convenient “encode” buttons for comment authors in the HTML editor.
Also adds basic quicktag buttons on the comment forms, using the Quicktag API built into WordPress (as of 3.3).

Post In Post vs WP Comment Encode