remm

<p>This plugin provide widget that display a list with categories and posts in your sidebar.<br />
Widget can save the opened categories, and use cache.</p>


Wp Ajax Tree

This plugin provide a widget that display a category and pages tree on your sidebar, using ajax to collapse categories.

Cynob IT Consultancy

<p>Adds a widget that makes your ‘all page list’ or ‘menu’  with slide  expandable and collapsible effect.</p>
<h4>Plugins Features:</h4>
<ul>
<li>Simple and nice collapsible/expandable menu with your ‘all pages’ and all your created ‘Menu’</li>
<li>Widget based</li>
<li>Widget has option to select which  ‘Menu’ to collapsible/expandable</li>
<li>Easly customizable</li>
<li>Looks cool!</li>
</ul>


Expandable/Collapsible Menu

Adds a widget that makes your 'all page list' or 'menu'  with slide  expandable and collapsible effect.

Wp Ajax Tree vs Expandable/Collapsible Menu