The document discusses how push notifications can be an effective marketing tactic by allowing personalized messages to be sent directly to users' devices, highlighting benefits like increasing subscriber rates and click-through rates, capturing leads with minimal effort, retaining customers by bringing them directly back to a website, and connecting with a wide audience in real-time without requiring a separate mobile app. Push notifications are presented as having advantages over email and SMS in terms of accessibility, time savings, and ability to get immediate user responses.