Ron Zvagelsky

Monthly grid view calendar widget highlighting archived and/or future posts.
Additional Features:
<ul>
<li>Popup details for each date with posts</li>
<li>Optional details include post author and comment count.</li>
<li>Ability to show posts by post type, category, specific taxonomy and/or term</li>
</ul>
<a href="http://presshive.com/plugins/wordpress-blog-post-calendar-plugin" rel="nofollow ugc">For more information or to request additional features, please visit the plugin page</a>

Blog Post Calendar Widget

The Blog Posts Calendar Widget allows you to display your archived or future posts in a calendar as a sidebar widget.

Nicholas Pickering

Adds Future scheduled posts to preview pages, so you can preview what your site will look like before the post goes live.
<h3>Arbitrary section</h3>
[Fork the plugin on <a href="http://github.com/2nickpick/ss-homepage-preview" title="GitHub" rel="nofollow ugc">GitHub</a>

SS Homepage Preview

Adds Future scheduled posts to preview pages, so you can preview what your site will look like before the post goes live.

Blog Post Calendar Widget vs SS Homepage Preview