This document outlines how marketing has changed from a focus on finding customers to being found by potential buyers in today's digital world. It discusses 5 key shifts in the rules of marketing: from finding customers to being found, from point-in-time communications to durable 1:1 relationships, from demographic segmentation to behavioral segmentation, from isolated channels to integrated exploding channels, and from intuitive decision making to data-driven decisions. The new approach involves inbound, relationship, and data-driven marketing tactics supported by digital marketing platforms.