For years, the terms "business model" and "marketing strategy" were cut-and-dried subjects. Both company and customer knew what to expect, and the process from touchpoint to sale could drag on for ages. In this linear approach to marketing, companies expected a lengthy time to reach a sale, all but leaving their business to chance, in the hands of a customer who may or may not have all the information they need to make a purchase. Learn how digital marketing has evolved over time and the new ways of marketing for your business.