21. Research on the effectiveness of social marketing is slim. 22. Fear appeals are commonly used in social marketing campaigns. 23. The agency specializes in public health and social marketing . 24. Several Madison Avenue ad companies have created social marketing divisions to win the government contracts. 25. It is the country's first national social marketing campaign to tackle the causes of obesity. 26. ShowClix provides social marketing tools that include Facebook ticket sales and social media sharing incentives. 27. It has been widely applied using social marketing techniques. 28. A variation of social marketing has emerged as a systematic way to foster more sustainable behavior. 29. In contrast to that, social marketing uses commercial marketing theories, tools and techniques to social issues. 30. In 2012, he left P & G to work social marketing for the camera company GoPro. 