Jacob Guite-St-Pierre

Allows you to create custom options that you can easily update via the <code>Options</code> administration panel and also allows you to use mentioned options in your theme using a simple PHP function:
<pre><code>get_custom_option ( $slug [, $default_value, $field ] )
</code></pre>
By default, only Administrators can change Custom Options, however you can use the filter <code>gsp_custom_options_capability</code> to change that. For example, if you wish to allow Editors to use Custom Options you can add this to your functions.php file:
<pre><code>function custom_options_capability ($capability) {
 return 'publish_pages';
}
add_filter ( 'gsp_custom_options_capability', 'custom_options_capability' );
</code></pre>
Very simple, yet efficient.

Custom Options

Quickly create, manage and use custom options in your themes!

iTRON

The Site Options plugin is a simple and free product for adding your custom site options on default page Settings -> Reading. 
 Just define needed settings in your functions file. <a href="http://nebster.net/en/plugins/site-options/" title="Site Options instructions" rel="nofollow ugc">More instructions</a>.
Adding your custom options
<pre>
 add_action( 'init', 'custom__site_options', 10 );
 function custom__site_options(){
 global $wpto;
 if ( $wpto )
 $wpto->fields = array ( 
 'section_one' => array( array( 'Header - First Settings', 'description will come' ), array(
 'f_number' => array( 'number', 'A Number' ),
 'f_text' => array( 'text', 'Simple text' ),
 )),
 'section_two' => array( array( 'Header - Additional settings', 'description will soon' ), array(
 'f_gallery' => array( 'gallery', 'Awesome gallery' ),
 'f_chbox' => array( 'checkbox', 'Are u checked?' ),
 )),
 ); 
 }
 </pre>
Access in the theme files
<pre>
 global $wpto;
 echo $wpto->getOption( 'section_one::f_text' ) ;
 </pre>
<h4>Field types support</h4>
<ul>
<li>text</li>
<li>textarea</li>
<li>wysiwyg</li>
<li>checkbox</li>
<li>number</li>
<li>select</li>
<li>email</li>
<li>image</li>
<li>gallery</li>
<li>colorpicker</li>
</ul>

WP Site Options

The Site Options plugin is a simple and free product for adding your custom site options on default page Settings -> Reading.

Custom Options vs WP Site Options