Filtering Rss Feed

Apr 5, 2010 at 9:30 PM

Apology if there is already a post on the subject. I am using a feed reader component in sharePoint to display news from my blog. The way it works,  I enter the URL path to the feed to display all news. Is there a way to filter the news by categories in the URL?  I tried for example this

http://www.mydomaine.com/BlogEngine/syndication.axd?CategoryID=1aa2463b-33d3-4ad9-8848-0a4504cfb7fe It is still returning all the news.

Thank you.