E-commerce involves buying and selling of goods and services over the Internet. There are several types of e-commerce models:
B2B e-commerce facilitates transactions between businesses and can be used for inventory management, pricing, and payments. B2C allows consumers to purchase from online retailers like Amazon. C2C includes individual consumers selling to each other on sites like eBay. Other models include B2G (business to government), C2G (consumer to government), G2G (government to government), and B2E (business to employees). Each model provides benefits for transactions conducted electronically over the Internet.