How Display Advertising Works
Display advertising has existed since the first banner ad ran on HotWired in 1994, and while the format has evolved enormously in targeting sophistication and creative capability, the core model, visual ads in defined placements across publisher pages, remains central to digital marketing. Today's display advertising is almost entirely programmatic, with DSPs handling the vast majority of buying across the open web through RTB auctions, PMP deals, and programmatic guaranteed contracts.
Why Display Advertising Matters for B2B Marketing
The IAB defines standard display ad sizes that most publishers and ad servers support, ensuring creative can run across different sites without custom production. The three highest-performing standard sizes are the medium rectangle (300x250), the leaderboard (728x90), and the large rectangle (336x280). High-impact non-standard formats including billboards (970x250), skin wraps, and expandable units deliver stronger engagement but typically require direct publisher deals and custom trafficking.
Display Advertising: Best Practices & Strategic Application
Display advertising serves distinct functions at each stage of the marketing funnel. Upper-funnel display campaigns prioritize reach and frequency to build brand awareness, using broad audience targeting or high-quality contextual placements. Mid-funnel display focuses on consideration, using content consumption signals and site visitor retargeting to keep the brand present as prospects evaluate options. Lower-funnel display retargets users who have visited specific product pages, added items to cart, or started a conversion flow, using dynamic creative that shows the specific products the user engaged with.
Agency Perspective: Display Advertising in Practice
Despite decades of predictions about its decline, display advertising has remained resilient. The evolution from static banners to rich media, HTML5, DCO (dynamic creative optimization), and now attention-optimized placements has sustained its relevance. The key challenge for display remains banner blindness, users's tendency to ignore placements they have learned to recognize as advertising. Advertisers combat this with creative excellence, attention-worthy formats, precise audience targeting, and frequency controls that prevent oversaturation.
