What is eCommerce and eBusiness?

What is eCommerce and eBusiness? What are the most significant differences between a brick and mortar business and eCommerce?
Visit an e-commerce site serving a niche market and assume that you have been asked to analyze the business. Conduct a simulated SWOT analysis on the Web site, including providing answers to the questions listed in Section 3.2.2. Be sure to include a SWOT diagram embedded in your text (Hint: Use Word/Insert/Table functions)

Response should be no less than 2-3 pages (not counting the cover page and references page), supported with credible references and submitted in a APA format.

You must submit your assignment as a Word doc attachment on the Assignments tab for the week.  Assignments submitted via email or the Messages tab will not be accepted.