Here is a link to a small Ruby command-line program I wrote.
http://frigidcode.com/feedscanner/index.html
It's called Feedscanner, and it searches the title and summary fields of RSS and Atom feeds for keywords that you specify. I find it to be a pretty nifty tool for when I want to see quickly what my favorite news, technology, and blog sites have to say about a particular subject, person, or event. Hope you will find it useful as well.
