Funnel marketing is a strategy that guides potential customers through distinct stages—awareness, consideration, and decision—using targeted content and messaging appropriate to each phase. B2B marketers create different materials for each stage: top-of-funnel content like articles and webinars attract broad audiences, middle-funnel assets like case studies and demos help prospects evaluate options, and bottom-funnel resources like pricing guides and ROI calculators support final purchase decisions. The goal is to move qualified leads systematically toward a sale rather than treating all prospects the same way.