From an article in Business 2.0, an endorsement of blogging:

Thanks to the combination of using a newsreader and plugging into a few good blogs (which then plug into more, and so on ...), I've created a hot list of business-oriented information that doesn't just rival my old information-gathering habits, it blows them away. Not only do I spend less time searching and more time learning, but I've also joined a challenging and diverse community of minds and business interests. Once you're in this kind of web, you don't leave it -- you'd be out of the loop. And in business, being out of the loop means death.