The M2E Pro extension fully integrates Magento into eBay, Amazon and Rakuten, PLAY.COM platform. This allows quick and simple creation as well as management of product listings (inc. automated synchronization of stock levels, pricing, and product details), import of eBay/Amazon/Rakuten order, automated feedback posting for buyers and many other tasks which significantly reduce time required for listing maintenance. http://www.magentocommerce.com/magento-connect/ebay-magento-integration-order-import-and-stock-level-synchronization-also-supports-amazon-rakuten-and-play-com.html