Thanks for the comment! Since amazon.com storefronts cover more products that the rest, hence the skewed results - this is specifically true with the long tail queries. As we add more sources, the dominance would be less pronounced :)
We did hear that feedback too. Hopefully our API helps mitigate that issue. Hit me up at vinoth at semantics3.com if you'd like to talk about how our API could work for you!
The discussion of the TOS kind of obscured the real question I was trying to ask, which is "What are users of this API allowed to do with the image data?"
The API provides a link to the image, which is probably perfectly legal, but the site that displays that image in, say, an ad for a product on a non-Amazon website may be infringing. I'd like more clarity on this particular aspect of this api.
We did hear that feedback too. Hopefully our API helps mitigate that issue. Hit me up at vinoth at semantics3.com if you'd like to talk about how our API could work for you!