Sam Gamdschie

SPS-Suite is the successor of “SPS -Sidebar Page Switcher”. It enhances your page-list and your archive-list in the sidebar as well as your search function. This plugin is useful for blogs with many static subpages and the wish of a small sidebar. 
Please take a look at the screenshots or at the pages mentioned below for a better understandig of the plugin’s functions. 
The plugin includes a widget for your widget-ready sidebar and is now compatible up to WP 2.8. 
There are several options implemented in the plugin: 
1. You can have the sidebar-page-list be more smart, e.g. only pages of the top level and all useful level are displayed, additionally you can hide pages from being displayed in the sidebar. 
2. You can extend your search function with a fulltext index, this search uses articles and pages and is restricted to MySQL 4.0 or higher. 
3. Addionally to the sidebar function this plugins allows you to display a navigation bar, which can help your users to maneuver through many sub- and subsubpages. 
4. Last not least this plugin shortens your archive list to a maximum of month displaying also all years.
Feel free to look at <a href=”http://www.tolkiengesellschaft.de>http://www.tolkiengesellschaft.de or <a href="http://www.hobbingen.de" rel="nofollow ugc">http://www.hobbingen.de</a> (German only) for a detailed picture of the functions (both pages use the plugin intensively). 
(Also compatible to WP 1.5 to WP 2.0 with an old version of the plugin, see plugin homepage)
<h3>Arbitrary section</h3>
Please contact me if there any issues with this plugin.
Version History: 
1.4.0 Update for new admin panel and some minor bugfixes 
1.3.4 corrected issues with query replacements for static pages (introduced by 2.5/2.6) 
1.3.3 corrected issues with standard language (english) in admin pages 
1.3.2 corrected some issues with unknown pages 
1.3.1 added support for widgets 
1.3. initial release of the current stable trunk

SPS-Suite

Suite for enhancing your 'static' pages and archives. This plugin hides pages from the page list, displays a navigation row and more.

Max Chirkov

This plugin adds a widget into the Widgets dashboard that allows in a simple way, without writing any PHP code on your part, to create custom navigation in any sidebar pre-defined by your WP theme.
Features Include:
<ul>
<li>Flat and multi-level navigation hierarchy for existing pages and custom links.</li>
<li>Very flexible conditional appearance options (greatly expanded from before 2.0 version).</li>
<li>Out-of-the-box Suckerfish support.</li>
<li>Option to add navigation links with custom title, url and target attribute.</li>
<li>Unlimited number of navigation widgets.</li>
<li>Optional setting includes blog posts into the navigation selection list (only pages are available by default).</li>
<li>Support for custom drop-down menus CSS.</li>
</ul>
Recent Updates Log:
<ul>
<li>2.3.0 – Fixes deprecated class constructor.</li>
<li>2.2.0 – WP 3.8 Compatibility Update.</li>
<li>2.1.5 – Added compatibility with Advanced Text Widget PRO.</li>
<li>2.1.4 – Minor update with IE6 JS fix.</li>
<li>2.1.0 – WordPress 2.8 Compatible and newer versions ONLY.</li>
<li>2.0.10 – Fixed active links bug.</li>
<li>2.0.9 – Fixed array unserialization, which was being broken by non-US characters (i.e. German umlauts).</li>
<li>2.0.8 – There is a floating bug between serializing from JS into PHP and back – hopefully it’s fixed now.</li>
<li>2.0.7 – Fixed get_posts() 5 post limit; Added ON/OFF target attribute option to the Settings so it can be compliant with XHTML 1.0 Strict;</li>
<li>2.0.6 – Fixed an error when parsing serialized array: <code>Warning: array_key_exists(): on line 149</code>.</li>
<li>2.0.5 – Custom links with hyphens bug fixed.</li>
<li>2.0.4 – Removed unconditional suckerfish_e.js declaration.</li>
<li>2.0.3 – Changed navigation links to permalinks.</li>
<li>2.0.2 – Fixed links with apostrophes bug. (Link titles that had apostrophe in them weren’t saving.)</li>
</ul>
Conditional widget appearance is based on Daikos’ Text Widget by Rune Fjellheim.
<ul>
<li>Author: Max Chirkov</li>
<li>Author URI: <a href="http://SimpleRealtyTheme.com" title="Real Estate Themes & Plugins" rel="nofollow ugc">http://SimpleRealtyTheme.com</a></li>
<li>Copyright: Released under GNU GENERAL PUBLIC LICENSE</li>
</ul>
<h3>Video Demo</h3>
Check out this quick <a href="http://screencast.com/t/ztSVIGmARoY" title="Demo Video for Simple Sidebar Navigation" rel="nofollow ugc">video demonstration</a>.

Simple Sidebar Navigation

Easy way to create custom navigation in sidebars or other pre-defined areas. Conditional tags are included to specify pages where widgets appear.

SPS-Suite vs Simple Sidebar Navigation