I think in the case of amazon.com, the people who go there usually know what they want, they go, they search and the results they get are good enough. It's act

I think in the case of amazon.com, the people who go there usually know what they want, they go, they search and the results they get are good enough. It's actually a terrible site to "browse" if you're looking for something but not really sure what, but if you know roughly what you want it works fine.