In his presentation "Youtility: Why Smart Marketing Is About Help Not Hype", Jay Baer introduces the concept of Youtility, which is marketing that is genuinely useful to customers. If a company solely sells products, they will only make customers temporarily, but if they help customers through useful information and resources, they can create customers for life. Baer advocates for creating highly useful content like eBooks, videos, and blog posts to help educate customers, rather than just focusing on sales and promotions. When companies provide great customer service and information, it leads to stronger relationships, higher conversion rates, and more sales over the long run compared to traditional advertising.