Mobile marketing is an important and growing marketing platform. Some key benefits of mobile marketing include personalization, immediacy, interaction, and targeting. However, there are also challenges like acceptance, privacy, strategy, and infrastructure. New mobile technologies discussed include smartphones, apps, QR codes, geolocation, NFC, and 4G. Social media is also significant for sports and entertainment marketers due to its massive reach and engagement. Statistics show the importance of platforms like Facebook, Twitter, YouTube, and how they can drive purchases and fan connections.