The document discusses five consumer marketing trends that are challenging traditional advertising approaches: 1) increasing consumer skepticism and resistance to ads, 2) media fragmentation making it difficult to reach large audiences, 3) demands for improved targeting and minimization of wasted impressions, 4) higher levels of accountability and eroding consumer trust in ads, and 5) the replacement of mass marketing with targeting of niche audiences. It then provides examples of digital marketing campaigns that achieved success through behavioral targeting, contextual targeting, and optimization to improve relevance and reduce costs per acquisition or lead.