But the Net is the greatest listening engine ever devised. These days anyone can choose, with its help, to be well-informed. You have to make the effort to figure out which key people are really on top of what you care about, so that you can start listening to them. Plus, you need to deploy some saved searches. Once you’ve done these things, then when you turn your computer on in the morning, it’ll tell you if anything’s happened that you need to know about.
Tim Bray in The Listening Engine.