Jonathan Brinley

The standard excerpt field will appear on pages, just as it does on posts.
Additionally, there is a new widget to display the excerpt of a selected page.
Created by <a href="http://flightless.us/" rel="nofollow ugc">Flightless</a>

Page Excerpts

The plugin is built for something very specific, and does it perfectly.

Simple but effective

Adds an excerpt field to pages, and provides a widget for displaying page excerpts

demetris (Demetris Kikizas)

Extra Options is a collection of WordPress tweaks to improve your publishing experience and your site’s performance.
It strives to be simple and discreet; 
everything in it is optional, it does nothing by default, does not touch your content, and uninstalls cleanly.
Extra Options offers options for the following:
<ul>
<li>Writing</li>
<li>Administration</li>
<li>Content filters control</li>
<li>Document HEAD control</li>
<li>Search Engine Optimization (all you need and nothing you don’t)</li>
<li>Loading AJAX libraries from the Google CDN</li>
<li>Plus a couple of miscellaneous tweaks</li>
</ul>
See homepage for a detailed presentation: 
<a href="http://op111.net/code/xo" title="Extra Options for WordPress [op111.net]" rel="nofollow ugc">op111.net/code/xo</a>
Please note that Extra Options is still very young and not considered stable. Your feedback is appreciated: 
<a href="http://op111.net/78" title="Extra Options v0.0.1: A plugin for WordPress [op111.net]" rel="nofollow ugc">op111.net/78</a>

Extra Options

A collection of tweaks to improve your WordPress experience and your site’s performance.

Page Excerpts vs Extra Options