Personalization on login allows websites to tailor content to individual users based on their browsing history and preferences, strengthening the "people" component of the marketing mix. By personalizing sections of the website after users log in based on content-based and collaborative filtering of their past searches and those of similar users, websites can attract people to visit more often by showing them more relevant messages. This personalized approach tackles both the "place" and "people" aspects of marketing strategy more effectively than a generalized website without login access.