This document outlines the new rules of marketing according to Liz Smyth of Marketo. It discusses how the rise of digital technologies and social media have fundamentally changed the marketing landscape. Specifically, it notes that information is now abundant, purchasing power has shifted to buyers, and marketing now holds organizational power. It then presents five new rules of engagement for marketing: 1) shift from broadcasting to conversations, 2) focus on behavioral segmentation over demographics, 3) integrate multiple expanding channels, 4) leverage big data for decision making, and 5) accurately measure return on investment across all touches. The document argues that marketers must adapt to stay relevant in this new environment defined by these rules.