Question: 1. Explain disintermediation and re-intermediation using examples. 2. Describe three different revenue models for a portal such as Yahoo! 3. What is meant by buy-

1. Explain disintermediation and re-intermediation using examples. 2. Describe three different revenue models for a portal such as Yahoo! 3. What is meant by buy- side, sell- side and marketplace- based e-commerce? 4. What are the different mechanisms for online auctions?

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