• About 232 million Americans will access the Internet by using a smartphone in 2019. Mobile e-commerce has begun a rapid growth based on apps, ringtones, downloaded entertainment, and location-based services. Mobile e-commerce will account for about $267 billion in 2019, 44 percent of all e-commerce. Mobile phones and tablets are becoming the most common Internet access device. Currently, more than 80 percent of all mobile phone users access the Internet using their phones, although they also use their desktops (eMarketer, 2018b).