6 Ways to Filter Your RSS Feeds - ReadWriteWeb
Buzz Marketing for Technology
JUNE 27, 2008
ZapTXT is a keyword filter (of the in variety) that returns results via email, instant messenger, or mobile phone. I use netvibes personally. you tell the system when you see a post with the tag "atom", file it as "rss". By the way, Gregarius is a PHP/Mysql RSS/RDF/ATOM feed aggregator licensed under the GPL.
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