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This article, in terms of WWIC, directly quotes Ford's article. It expands on his thoughts in much further detail.

Although this is foremost a retailer of products, Amazon sticks out to me as a successful model of the WWIC concept. Being able to read both customer and professional product reviews allows me to investigate a product's merits and deficincies with ease. I have joked with my wife that Amazon may know me better than anyone. The items Amazon recommends for me are often so closely aligned with my interests that I am impressed with their algorithms to determine my preferences. Occasionally this list of suggestion will contain an item of no interest to me, and I am able to simply click and delete it. Somehow Amazon manages to consult with me in a way I find highly effective.