Disintermediation refers to the removal of intermediaries in the supply chain, such as retailers, by allowing direct transactions between producers and consumers using the internet. This reduces costs. Dell eliminated retailers and sells directly to consumers. Amazon's online book sales prompted Barnes & Noble to also sell online. Direct sales allow companies like Oakley to gather customer data. While some industries like computers have seen strong disintermediation, others like alcohol face legal barriers. Effects include the reduced role of salespeople, lower profit margins for non-adapting companies, and information overload for consumers with too many options. Companies must have infrastructure to handle online fulfillment and customer service. Disintermediation can be either a disaster or a discipline