Global internet service provider Yahoo! has agreed to purchase online retailer Kelkoo for EUR475 million. Kelkoo is Europe’s leading online ‘comparison’ shopping service, with operations in nine countries. It enables customers to search for a consumer product’s best price across up to 2,500 different suppliers. Online merchants connected to the network pay lead referral fees to Kelkoo when customers navigate through to their sites. Having been launched in France in late 1999, Kelkoo has been profitable since the fourth quarter of 2002.