Hans-Helge Buerger

Child Page Tree adds a select box to the page edit site right above the publish button. Using this select box you can decide whether to add and where to add the page tree. You can either add the page tree at the very top of page (prepend) or add it to the end of a page (append).
The output is a unorderd list with nested lists to reflect the hierarchy of the children. However this list can be changed using the build-in filter <code>child_page_tree_before_output</code>. This filter is applied before the list is added to content.
The plugin ships with basic stylesheet, which adds a icon to each link and does not show the hierarchy of the pages. The handler for this stylesheet ist <code>child_page_tree_style</code> and you can simple dequeue the script using <code>wp_dequeue_style()</code>. Another way to add your own custom style is to override the default style by using a custom CSS plugin. The page tree has an id (<code>ul#child_page_tree</code>) you can use and one class, either <code>.append</code> or <code>.prepend</code> depending its location.
<h4>Requirements</h4>
<ul>
<li>min. PHP 5.4</li>
</ul>

Child Page Tree

Very minimalistic and useful plugin. I like it!



Very useful

Display a page tree of all child pages of the current site

Kenny

The goal of this plugin is to make is really easy for someone on 
Wordpress to implement the NotFound.org missing child page in 
place of their standard 404 page.
The HTTP 404 is the error that you see when a link is broken, 
or you navigated to web page that just isn’t there. It happens, 
and it’s one of the most common error pages you see.
Why not turn that into something that benefits the world? The more 
eyes that see a missing child, the more likely someone could be 
found.
Note: Activating this plugin will automatically replace your 
default WordPress 404 page. To stop it, simply deactivate.
All of the missing child notices are served within an iframe 
pointing to <a href="http://notfound.org" rel="nofollow ugc">NotFound.org</a>.
<a href="http://twitter.com/_kennyk_" rel="nofollow ugc">@_kennyk_</a> for updates, or visit 
<a href="http://codefury.net" rel="nofollow ugc">codefury.net</a>
<h3>Notes</h3>
Because of the current width of the NotFound.org page (720px), it only 
made sense to put it in a separate layout from your site, rather 
then embed it in the current theme. If NotFound.org eventually 
provides a more portable version, I’ll accommodate that too.

NotFound.org 404 Page

This is a Wordpress plugin that turns your 404 "page not found" error into a page devoted to helping find missing children.

Child Page Tree vs NotFound.org 404 Page