[I was talking] with someone who lamented the fact that feed readers/aggregators didn’t help them “find new feeds,” predicting that that would be a “killer feature” for a client.

But for me, and—I’d bet—a lot of other high volume feed consumers, the killer feature wouldn’t be finding and adding new feeds, but pruning old ones. I’m constantly adding a feed here and a feed there, for a variety of reasons…

None of the readers I’ve used, including my current choice, provide me with anything in the way of abstracted metrics on my feeds. The task of cutting back my blogroll to some sort of manageable level is thus left to me, and when you have as many as I have (400+) it’s difficult to know where to begin.

— Stephen O’Grady