> Why? Search is a service provided by a company trying to make money, just as a retailer. I don't have any horses in this race, so I am not trying to take an

> Why? Search is a service provided by a company trying to make money, just as a retailer. I don't have any horses in this race, so I am not trying to take anybody's side, but since you ask, here is my opinion: A retailer is by default selecting what items to sell. A search engine is by default crawling everything. So one is kind of opt-in and the other opt-out.