As a Merchant Seller, I would like to know which Comparison Shopping Sites you have found to be the most profitable? I have been experimenting with BizRate, Yahoo!, NexTag, Froogle, Shopping.com, and Amazon, and have found their performance to be spotty at best. I want to know if anyone has had more luck with any one site than another?
In addition, what have you found to be the best approach when building product feeds for these Shopping Engines? Is it best to submit all of
your products so a consumer can "See All" of your product line, or is it more effective to only send a few of your best selling products?