信息市场，指信息交易的平台。在信息市场中，人们交换信息时，会将其视为权力工具或是拿来交换更高价值的信息。相对的，当新科技大大降低了创造信息和传播信息的费用时，传统的信息市场的领导者，像是报纸、百科全书将要失去其地位。他们也指出信息市场不像教科书竞争市场，有很多厂商提供类似的产品，因此没有能力去影响价格。

从传统到信息市场的转变过程中，自主的提供者和用户代替卖方跟买方各自的进行交换东西和服务。就像工业从大量制造转为客制化，市场也应该转为个人化。相同地，随着客制化的增加，关于产品和服务的信息将成为一种愈来愈重要的资源。

Although information has been bought and sold since ancient times, the idea of an information marketplace is relatively recent. The nature of such markets is still evolving, which complicates development of sustainable business models. However, certain attributes of information markets are beginning to be understood, such as diminished participation costs, opportunities for customization, shifting customer relations, and a need for order.