The document compares Google Analytics and website visitor tracking tools by using an analogy of throwing a dinner party with each tool. It explains that Google Analytics would only provide anonymous, aggregate data about guests such as popularity of dishes and number of guests. Website visitor tracking, represented by Salesfusion, would identify individual guests and their interests, allowing the host to have personalized conversations. The document then describes how website visitor tracking works by using cookies to track individual visitors' behavior on a site and integrate with CRM systems.