E-retailers have opportunities to personalize products and services for customers. Many online stores already use personalized ads, displays, and suggestions for registered users based on their browsing history and purchases. Personalization is an effective method for increasing customer lifetime value and loyalty as it allows retailers to tailor recommendations and minimize browsing time to find desired products. To take advantage of personalization opportunities, e-retailers must understand customers’ individual needs and guide their interactions accordingly. As customers share more information, retailers will be better able to offer intimate, real-time personalization of both site content and customer service.