Label-Specific Feed in Wordpress

Customized Feeds

You can also add category specific feeds with WordPress. You can do it by the permalink reference or the category ID number.

• http://example.com/category/category-name/feed/
• http://example.com/category-name/feed/ (for WordPress blogs not using “category” in their permalinks
• http://example.com/wp-rss2.php?cat=4

http://lorelle.wordpress.com/2006/03/27/customizing-rss-feed-links-for-wordpresscom-and-wordpress-sidebar-widgets/