Amazon.com is in the business of selling products online. They are a leader in the industry and have taken their e-commerce technology and made it available to you.
WebStore by Amazon provides you with a branded e-commerce site backed by the support, selection and expertise of Amazon's authentication technology. Amazon's WebStore is reliable, secure, powerful, and simple.
And, Amazon's robust marketing tools are included!
You can use the same account for buying and for selling, but if your Amazon account is under your personal name, consider opening a new account under your business name.