osCommerce Kelkoo Data Feed - Version 1.0 osCommerce Kelkoo Data Feed is an osCommerce contribution which assures the easiest export of your products into Kelkoo.com - one of the best Pay-Per-Click services.Kelkoo is a shopping search engine which helps you to find stores selling products on-line. We do this through a results page which lets you compare based on price, brand, delivery costs, shop and product features.