http://wordpress.org/extend/plugins/advanced-category-excluder/
Advanced Category Excluder
The No.1 content separator, content manager, content excluder, sidebar widget manager plugin to enable CMS like functionality. It includes search engi
This plugin was born because there was a no other real alternative to enable
content sparationd and some CMS like functionalities
in WordPress. The main goal was, to enhance WordPress’s functionalities, to hide some unwanted categories, from defined parts of the blog. Today,
ACE
can override your search results, your RSS feed listing, your category listing, your recent post, and recent post widgets and also your entry page, or even hide whole categories of posts from web crawlers if you want to. This is great, for
SEO
reasons, for content separation, for grouping information, and handle them as real sub pages.