6 Ways to Filter Your RSS Feeds - ReadWriteWeb
Buzz Marketing for Technology
JUNE 27, 2008
I use netvibes personally. I still cant believe this functionality hasnt been integrated into (all) readers. A unique feature is you can also do dedupe items that have the same URL or title. This idea would be handy for lifestreams, which comprises of blog feed, bookmark feed, photo feed, twitter feed, etc.
270 
Let's personalize your content