Vidjeti i Iskaz [Višeg potpredsjednika za upravljanje proizvodima - maloprodaja, Amazon Corporate LLC, SAD], 18. rujna 2014., str. 41.: točke 22. – 25.:[…].
Amazon ger följande exempel: ”By way of illustration, a very large brick-and-mortar retailer might have tens of thousands products for sale: in contrast, Amazon's European websites offered nearly 3.7 million distinct products for sale in 2005 and around [20–30] million in 2013.