M-commerce involves buying and selling goods and services using mobile devices like smartphones. While hyped for years, m-commerce is now growing rapidly as smartphone ownership increases. Companies are utilizing various mobile advertising formats like SMS, apps, and barcodes to reach consumers who are using their phones while consuming other media and making purchasing decisions. However, concerns exist around privacy and how advertising may bombard phones. Laws and payment systems may need to evolve to support m-commerce growth while balancing consumer privacy.