This vote was not binding and may yet be reversed. Even if the UK does leave, it will not happen until 2019 at the earliest.
So, for now, the UK remains in the European Union
If you are located in the EU and buy from us nothing has changed, there are no extra import duties/taxes and you have EU consumer protections.
Update 2018! Two years on from the Brexit vote it remains impossible to determine what the UK - EU future relationship will be. However, what does seem certain is that very little will change. Whatever fudged solution politicians come up with, neither the UK or EU can afford to harm trade or their citizens rights and opportunities.