Yahoo! ( YHOO) will acquire the France-based Internet services provider Kelkoo for about $575 million in a bid to boost both its e-commerce business and European presence. The acquisition is the latest by Yahoo! as it continues to evolve from a free, advertising-supported operation to a more fee-based business model. "Commerce has emerged as a key component of search, and the combination of Web search, product search and comparison shopping will help further Yahoo!'s goal to create the most comprehensive and best user experience on the Web globally," the company said. Kelkoo is the largest e-commerce service in Europe with operations in nine countries, reaching nearly 10% of all Internet users there, according to a statement from the companies. The deal is expected to close in the second quarter. Yahoo! shares rose 7 cents to $47.01 in premarket trading.