Digitally Centric Performance Marketing outlines how performance marketing optimizes campaigns based on measurable consumer responses and behaviors. It discusses how search marketing has changed consumers' purchase funnels and how all marketing can now be response marketing. The document provides an example of how Kraft implemented a performance branding campaign around recipe downloading that was optimized for return on behavior and led to measurable sales increases. It emphasizes integrating direct marketing, brand marketing, and digital skills; using new technologies like online ad exchanges; and creating simple, trackable metrics to continuously optimize campaigns.