A location-based advertisement method, system, and non-transitory computer readable medium, include a location-based advertisement system, including a gaze tracking circuit configured to track a gaze of a user relative to a plurality of advertisements displayed on content-serving devices to determine a focus level of the user with respect to each of the plurality of advertisements, a location detecting circuit configured to detect when a user is within a predetermined proximity of a location of a business having products related to the plurality of advertisements displayed on the content-serving devices, and an advertisement sending circuit configured to send a notification to the user based on the user being within the predetermined proximity of the location of the business and the plurality of ranked lists ranking the focus level of the user.