I thought this tidbit on community and personalization was particularly interesting:
The next generation [shopping search] has to do with community features and more robust ratings and review. We will focus on bringing more content into the experience ... It's about search, content, community, and personalization.Search helps people find something when they know exactly what they want. Content, ratings, and reviews help shoppers differentiate between products. Personalization helps surface interesting items buried in the long tail. Combined, shoppers can find and discover the right product at the right price.
See also my previous post, "Tyranny of choice and the long tail".
[interview found via Gary Price]