Selling on Amazon :
List items you wish to sell on Amazon.com for $39.99 per month and referral fee (referral fee varies by category) for sales made.

Webstore by Amazon :
Setup your own branded e-Commerce site using much of the same technology which powers Amazon.com for $59.99 per month and 7% referral fee for sales made.

Fulfillment by Amazon* : Let Amazon literally do the heavy lifting for you by shipping the goods purchased by your customers. Rates vary.