I have a custom web app that is not shopping related. I would like to integrate a shopping experience into this site with minimal development and ongoing support. My ideal would be to simply build an iframe page to an existing shopping comparison site like Google shopping, Pricegrabber, Shopzilla, etc, but it appears that they do not accept input parameters, so I have no manner to track my users by my internal group which is a requirement of this project. In case I am wrong are there any such sites/platforms that I simply use an iframe that will accept an input parameter which can be used to track the user?
I realize there are sites with services API's from which I could build my own shopping search page, but I'd prefer not to do this as the shopping site is not core to the project.
Are there ecommerce sites (cloud hosted preferred) that I could launch with essentially an entire shopping catalog? The ecommerce site seems to be focused on selling one's own products, whereas, i my case I am looking for a site to simply display affiliate deals or another provider's catalog?
Any suggestions are very much appreciated.