CSE’s or comparison shopping engines, allow merchants to go head to head in order to increase sales by attracting new customers. They do this by collecting product descriptions and prices from participating retailers to show all the results on one page for a quick comparison to save the buyer time and money. If you are a retailer that has competitive prices I am sure you can easily see how this would benefit your business. Other retailers want to know, what would be your main concern when using this type of CSE, or comparison shopping engine?