Sergio: Electronic commerce is great!

　　Julia: Why is that?

　　Sergio: Look, I can make a transaction using my computer. Then they will deliver the product I want. All I need is a broadband connection.

　　Julia: Just another excuse for you to stay at home.

　　Sergio: That's right. My books from Amazon.com will arrive very soon.

　　Julia: E-commerce has only one problem.

　　Sergio: Yeah, too much information on the web site.

　　Julia: No, I'm not talking about that. The wired consumer benefits more than the producer.

　　Sergio: Well, the producers are also changing their business models.

　　Julia: How?

　　Sergio: They are using web-based B2B exchanges. These are mushrooming all over the Internet.

　　Julia: I heard about that.

　　Sergio: Big companies like Cisco, Oracle and car maker, GM, are leading the changes.