E-commerce has greatly changed the marketing of goods. Before e-commerce was developed, the marketing and sale of goods was a mass-marketing and sales force-driven process. Marketers viewed consumers as passive targets of advertising campaigns. E-commerce has brought many new possibilities for marketing. The Internet and Web can deliver, to an audience of millions, rich marketing messages with text, video, and audio in a way not possible with traditional commerce technologies such as radio, television, or magazines. Merchants can target their marketing messages to specific individuals by adjusting the message to a person's name, interests, and past purchases. In addition, considerable information about the consumer can be gathered from the website the consumer visits. With the increase in information density, a great deal of information about the consumer's past purchases and behavior can be stored and used by online merchants. The result is a level of personalization and customization unthinkable with earlier commerce technologies.