Flourish Pixel

Remove/Exclude specific categories from site RSS Feed. You just need to install this, then place your category id in it’s option page and save. That’s all. If you want to exclude more than one category, then place them one by one and separate them by comma.
For Example: -1,-2
**Note: you must need to use minus sign (-) before category id.

FP RSS Category Excluder

Remove/Exclude certain categories from site RSS Feed.

Renji

‘Pages and Posts in Feed’ is a simple plugin that modifies WordPress RSS feed to include both ‘Page’ and ‘Post’ types in the site’s feed. This creates a site feed with both pages and blog posts in it. Useful for those who use WordPress as a CMS.
The plugin needs no configuration. Just activate it, and you are good to go. Deactivating the plugin restores RSS feeds to their default state.
<h4>Plugin Page</h4>
SumTips (<a href="http://sumtips.com/2011/12/include-page-custom-post-type-wordpress-feed.html" rel="nofollow ugc">http://sumtips.com/wp-page-in-feed</a>)

Pages and Posts in Feed

Includes pages along with posts in site's RSS feeds.

FP RSS Category Excluder vs Pages and Posts in Feed