E-commerce refers to the purchase and sale of goods and/or services via electronic channels such as the Internet.
Categories of e-commerce
B2B (Business to Business) —
This involves companies doing business with each other.
Example is manufacturers selling to distributors and wholesalers selling to retailers.
B2C (Business to Consumer) —
B2C consists of businesses selling to the general public through shopping cart software, without needing any human interaction.
C2B (Consumer to Business) —
In C2B e-commerce, consumers post a project with a set budget online, and companies bid on the project. The consumer reviews the bids and selects the company.
C2C (Consumer to Consumer) —
This takes place within online classified ads, forums or marketplaces where individuals can buy and sell their goods.
Examples : Craigslist, eBay and Etsy.