Commerce involves the exchange of goods and services between entities. E-commerce refers specifically to commerce conducted electronically online through means such as the internet. It allows buying and selling of goods and services through online transactions. There are several types of e-commerce including business to business (B2B), business to consumer (B2C), and consumer to consumer (C2C). While e-commerce provides benefits such as access to global markets and low entry costs, it also presents challenges such as an inability to examine products personally and potential for credit card theft.