Quoting from There are Feeds and Then There are Feeds
And about a year ago, I started adding Technorati watchlists, as well as Feedster and Pubsub search feeds, and del.icio.us, Furl and flickr feeds on tags, and looking up terms on Blogpulse and Bloglines, to see who linked to my blog, wrote about key words I cared about or were on a topic, project or company I was tracking. Sometime last summer, I realized that more than half my 300+ feeds were search feeds – key words, URLs and in some cases other focusing information like say, the middle 50% of bloggers based upon inbound links….
Then, after a while, I started reading all the search feeds first, and a few bloggers’ feeds, but the rest of the single blog feeds have become less important. Often, I see those bloggers’ (whose single feeds I subscribe to) posts in my search feeds, because they do blog on those topics I care about, though not all their posts are on those topics fit those search criteria. With a finite amount of time, increasingly defined information needs, and a desire to raise the signal to noise ratio, I rely more heavily on the search feeds, than other traditional RSS feeds that send me a single blog’s or legacy news feed.