timlinden

Remembering to post every day, and which days you already posted, is super easy with this plugin. 
It shows you a calendar with days red when there isn’t a post, and days green when there is. Green 
days you can hover over and see the title of the post, and click to edit the post for that day.

wpFutureCal

A simple calendar that displays when you edit posts, showing which days you have posted on.

krawl

Creates a widget that can be used to display upcoming posts.
Features
<ul>
<li>Control number of posts to be displayed</li>
<li>Display posts in ascending, descending or random order</li>
<li>Display post titles as a link or plain text</li>
<li>Display drafts along with scheduled posts</li>
<li>Display drafts instead of scheduled posts</li>
<li>Provides a shortcode for displaying</li>
</ul>
Shortcode(s):
<ul>
<li>[bcdupcoming] : Displays a list of all upcoming posts. Has the same options available to it as the widget.</li>
</ul>
For detailed usage instructions please visit [duhjones.com](http://www.duhjones.com/downloads/bcd-upcoming-posts/)

BCD Upcoming Posts

Displays a list of upcoming posts in a widget.

wpFutureCal vs BCD Upcoming Posts