Steve

Adds the ability to enter contact information and output the details in your posts, pages or templates.
Use the shortcode <code>[contact type="phone"]</code> to display any of the contact details, or use the function call <code><?php if ( function_exists( 'contact_detail' ) ) { contact_detail( 'phone' ); } ?></code>.
Once you have defined a contact email address, use the shortcode <code>[contact type="form"]</code> to output the contact form.
Languages: Also available in Español (Spanish) and українська (Ukrainian by Michael Yunat).

Contact Details

Adds the ability to easily enter and display contact information.

Brad Williams

This plugin lets you create category mappings allowing for one top-level blog to act as a portal for your global community of WPMU blogs. Category postings are aggregated based on the mappings and displayed on the top-level blog.
Features:
<pre><code>* Map multiple top-level categories
* Built-in sidebar widget to display all categories
* WordPress MU 2.7 approved!
</code></pre>
<h3>Plugin Support</h3>
<a href="http://webdevstudios.com/support/wordpress-plugins/" title="WordPress Plugins and Support" rel="nofollow ugc">WordPress MU Category Mapping Plugin</a>

WordPress MU Category Mapping Plugin

Plugin links categories network wide to provide one top-level blog to act as a portal for your global community of blogs

Contact Details vs WordPress MU Category Mapping Plugin