Free customized RSS feed for a specific topic?

Is there a free method or must we pay? Recommendations?

[javahava]

Hi there,

I'm looking to place a customized news feed on my site, basically something that pulls up any articles on "widget maker A," "widget maker B," or "Widget maker C." Ideally, we'd need to pull articles from only US sources, and as many as possible. Is there a free way of doing this? Or should we go to a commercial service? Which one would you recommend?

[bill]

Places like myRSS and syndic8 might be good places to start looking. I'd be interested to hear of others as well.