E-commerce and online sales have revolutionized holiday shopping. First there was the rise of Cyber Monday, but now the growth of mobile and tablet-based commerce makes it easier than ever to shop from anywhere at any time.

Social media has accelerated this process, with consumers sharing shopping tips with friends and retailers offering special deals.

In this edition of Smith Business Close-Up with the University of Maryland’s Robert H. Smith School of Business, Bill Rand talks about how e-commerce and social media have revolutionized holiday shopping and the way we buy things throughout the year.