This document discusses marketing technology and the changing role of marketers. It notes that acquiring, converting, and retaining digital customers has become marketing's responsibility, rather than sales or IT. Today's marketer has many channels to choose from and access to large amounts of customer data and insights. Marketing technology applies technology to achieve marketing goals through tools like analytics, software, models, and algorithms that reveal customer interests and values. The rise of marketing technology is driven by digital life, changes in marketing culture, pressure on marketing budgets, and increased investment in martech companies. The document provides advice for both marketers in understanding marketing technology vendors, and vendors in effectively pitching their solutions.