Surveillance marketing is a form of marketing that involves collecting and using data about consumers' online behaviors and activities in order to target and deliver advertising to them. Surveillance marketing typically involves tracking consumers' online activities, such as their web browsing, search queries, social media interactions, or mobile app usage, and using this data to build profiles of their interests, preferences, and habits. This data is then used to deliver targeted advertising to consumers, based on their individual profiles and behaviors. Surveillance marketing can be an effective way for advertisers to reach their target audience with relevant and personalized ads, but it can also raise concerns about consumer privacy and data protection. Some critics argue that surveillance marketing can be intrusive and manipulative, and that it can violate consumers' privacy rights by collecting and using their data without their knowledge or consent.