E-commerce refers to the buying and selling of goods and services using the Internet. It can occur between businesses, businesses and consumers, consumers and businesses, and consumers directly. E-commerce has grown exponentially since emerging in 1995 and is still growing, even during economic recessions. While mobile commerce is a small percentage of total e-commerce currently, it is the fastest growing segment. The benefits of e-commerce for consumers include convenience and greater selection, while disadvantages include limited customer service and an inability to see products physically before purchase.