shopping.yahoo.com
Unique visitors, January 2009: 18,588,000 (Nielsen Online)
Yahoo (YHOO) offers online storefronts and the ability to list products on Yahoos shopping service.
Pros: Yahoo store templates can offer a quick way to get products listed online.
Cons: Unlike Amazon or eBay, Yahoo is not primarily an e-commerce brand, so the audience may be less ready to buy.