4-7. What is the online consumers hierarchy of needs, and why is it important for e-tailers?

4-8. Describe the differences between SEO, search marketing, and sponsored search.

4-9. Describe m-commerce and explain how it is different from regular EC.

4-10. What is showrooming, and how has it affected offline retailers?

4-11. Compare and contrast online banking and online brokerage.

4-12. How does taxation pose a threat to EC?

4-13. How does net neutrality pose a threat to EC?