List and briefly explain the main types of e-commerce

What will be an ideal response?

The main types of e-commerce are Business-to-Consumer (B2C), in which online businesses attempt to reach individual consumers; Business-to-Business (B2B), in which businesses focus on selling to other businesses; Consumer-to-Consumer (C2C), which provides a market in which consumers can sell goods to each other; mobile e-commerce (m-commerce), which refers to the use of wireless digital devices to enable Web transactions; social e-commerce, which is commerce enabled by social networks and online social relationships; and local e-commerce, which is e-commerce that is focused on engaging the customer based on his or her geographical location.