Answer to Question 1
E-marketplaces are often classified based on the buyers and sellers they serve.
Business to consumer (B2C) is an e-commerce relationship in which businesses offer products for online sale to consumers, such as Expedia.
Business to business relationships (B2B) is an e-commerce relationship in which businesses can buy and sell products or services online to one another. For example, on AliBaba.com, a retailer who needs to restock the inventory for a product can compare wholesale prices, minimum orders, and payment terms from suppliers in dozens of countries.
Consumer to consumer (C2C) is an e-commerce relationship in which individual consumers can buy and sell to one another over the Internet, such as eBay and Craigslist.
Consumer to business (C2B) is an e-commerce relationship in which individual consumers can sell products or services to businesses. A blogger, for instance, might add a link on the blog to a product sold by an e-commerce company. If a blog visitor clicks on the link and buys the product, the company will pay the blogger a small fee.
Government websites also support online interactions, so terms such as G2C, G2G, and C2G have appeared. For example, G2C encompasses services such as online payment for car registration renewals, and C2G might include electronic filing of tax forms.
Answer to Question 2
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