CSE Information
Posted June 22, 2007 
Comments(4) On the internet, a price comparison service (also known as shopping comparison or price engine) allows individuals to see lists of prices for specific products. Most price comparison services do not sell products themselves, but source prices from retailers from whom users can buy.
Product information is uploaded to these website by way of Datafeeds. There is no standard format for datafeeds, and it can be extremely confusing to set these up and optimize them.