check out the site tarazz, also look at why shop page and their US/UK and Asia merchant list there

have you see such business model before ?

what would be your thought? merchants and affiliates

from the consumer viewpoint :
- what would be their currency exchange rate ?
higher than credit card companies' rate ?
- how's the shipping rate compared to the shipping rate quoted by the original seller (for the sellers that offer int'l shipping as well) ?