Saw this on BoingBoing yesterday and meant to blog it, but then didn't: FeedRinse is a pretty neat idea. Put your various RSS subscriptions in, combine them into channels (if you so desire), then set up filters on various criteria.

Why would you want to do this? Maybe because you have no idea what the hell I'm talking about when I write about tech stuff, and don't care to learn. You could filter out all of the tech posts from our feed and just see the others. Or you could just view posts by Catherine. Or add richer keyword filtering to a Craigslist feed.

Sadly, their site is a little too slick for its own good — in order to keep up with the guy's 19 or so different blogs, I tried to put together a "Kriston" channel. Unfortunately, the dynamic feed-adding process seems to have a bug; when I added new blogs I'd get empty select boxes instead of meaningful UI elements. Oh well.

But it's still a good idea, and probably works just fine in IE or Safari or Camino or Opera or something. And the feed filtering stuff works fine, I believe — it's just the channel-creation feature that's broken. Once they get the kinks sorted out, this will be the kind of thing that ends up being unepectedly useful on a regular basis.