Systems, methods, apparatuses and computer program products leveraging an internet of things network integrated into a surrounding environment to detect a presence of users within engagement zones surrounding content displayed in a physical location. One or more IoT devices equipped with sensors, audio systems, video systems and/or user input capabilities record interactions with the displayed content, and capture behavioral cues indicating an expressed interest in the content by users. Digital versions of the displayed content are delivered to one or more devices associated with the user. Additional content associated with the displayed content or similar content having one or more of the same distinguishing characteristics may be aggregated with the digital versions of the displayed content and delivered to the user. Aggregated content delivery can be delayed until users are in a safe, suitable location to review the aggregated content being delivered.