Brett Howsley discusses how social media has become an important tool for sports marketing. He notes that the main objectives of sports marketing are to fill stadiums, create awareness, generate sales, build relationships with fans and athletes, and create shareholder value. Social media allows marketers to promote to thousands or millions of customers daily and is a must for any sports organization. It helps enhance brand awareness, reach fans across different regions simultaneously, and encourages interaction among fans. Popular social media platforms for sports marketing include Facebook, Twitter, Pinterest, and social sharing on athlete accounts. Contests and real-time engagement are effective strategies on these channels.