I need my papaer re written and more detailed organized around the topic of the model of e-commerce. Define and describe the following types of e-commerce (B2B, B2C, C2C) using these examples:

Indicate the model of e-commerce taking place in the scenarios below AND summarize ways in which each business entity might market their goods/services to their customer.

1. I buy a Playstation 3 video game from Amazon.  (B2B)
2. Amazon buys pens and paper for their offices from Office Depot.  (B2B)
3. I sell my antique lamp to a man from Chicago on E-bay.    (C2C)