This document discusses retargeting as a digital marketing technique. Retargeting involves serving ads to users who have previously engaged with a website. It keeps brands top of mind by recapturing the interest of people who visited a site but didn't convert. Retargeting ads appear on other sites users visit later, increasing awareness and engagement. Implementing a retargeting campaign through S-WIFI's WiFi network allows marketers to target customers based on location and reach potential customers across multiple digital channels.