How important are blogs? Try comparing it to Johannes Gutenberg's Invention, the printing press, unveiled in 1440. It sparked a publishing boom and an information revolution. Some say it led to the Protestant Reformation and Western democracy. Along the way, societies established the rights and rules of the game for the privileged few who could afford to buy printing presses and grind forests into paper.

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The printing press set the model for mass media. A lucky handful owns the publishing machinery and controls the information. Whether at newspapers or global manufacturing giants, they decide what the masses will learn. This elite still holds sway at most companies. You know them. They generally park in sheltered spaces, have longer rides on elevators, and avoid the cafeteria. They keep the secrets safe and coif the company's message. Then they distribute it -- usually on a need-to-know basis -- to customers, employees, investors, and the press.


Sure, most blogs are painfully primitive. That's not the point. They represent power. Look at it this way: In the age of mass media, publications like ours print the news. Sources try to get quoted, but the decision is ours. Ditto with letters to the editor. Now instead of just speaking through us, they can blog. And if they master the ins and outs of this new art -- like how to get other bloggers to link to them -- they reach a huge audience.

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This is just the beginning. Many of the same folks who developed blogs are busy adding features so that bloggers can start up music and video channels and team up on editorial projects. The divide between the publishers and the public is collapsing. This turns mass media upside down. It creates media of the masses.

How does business change when everyone is a potential publisher? A vast new stretch of the information world opens up. For now, it's a digital hinterland. The laws and norms covering fairness, advertising, and libel? They don't exist, not yet anyway. But one thing is clear: Companies over the past few centuries have gotten used to shaping their message. Now they're losing control of it.

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Want to get it back? You never will, not entirely. But for a look at what you're facing, come along for a tour of the blogosphere.