The document discusses the evolution of product sampling from traditional offline methods to a more targeted and digital "Sampling 3.0" approach. It outlines some of the limitations of traditional sampling and how social sampling works by encouraging brand fans to share samples and recommendations via social media. This allows companies to better track customer intent, purchase behavior, and gain customer data and feedback to improve marketing. Two case studies show how specific companies were able to quickly distribute thousands of targeted samples cost-effectively and generate brand awareness, loyalty, and demand through a digital sampling approach. The document concludes with best practices for digital sampling, such as targeting the right customers, measuring key metrics, and making sampling social and cross-promotional.