This WordPress Plugin allows you to present a menu with multiple RSS feed subscription option to your site's visitors in addition to your normal RSS subscription option. Ingo page : http://ukras.info/category-rss-widget-menu/

If your site covers multiple topics then your subscribed readers may get annoyed when you update your site with content that they are not interested in and they get a notification in their RSS reader.

I found that most of the time I never subscribe to a site's RSS feed when it doesn't have the topic/category specific subscription option, specially when the site covers multiple topics cause I don't like to be hammered with all the unwanted content updates.

This plugin allows you to configure up to 8 different topic specific RSS feeds.

Usage:

There are three ways you can use this plugin:

1. Add the Category Specific RSS Widget to your sidebar from the Widget menu
2. Add the trigger text [category_specific_rss_menu] to your posts or pages
3. Call the function from template files:

1. Unzip and Upload the folder 'Category-specific-rss-wp' to the '/wp-content/plugins/' directory
2. Activate the plugin through the 'Plugins' menu in WordPress
3. Go to Settings and configure the options eg. your category names and RSS link of the specific topic.
4. Go to the Widgets menu and add the 'Category Specific RSS' widget to the sidebar or add the trigger text to a post or page where u want it to appear.