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eBay

eBay

www.ebay.com
Unique visitors, January 2009: 56,199,000 (Nielsen Online)

The mother of online marketplaces, eBay (EBAY) remains the dominant e-commerce platform for auctions and fixed-price sales. EBay stores and eBay's hosting company ProStores, can help you promote your business on the eBay site or your own site and list items more efficiently than the casual eBay seller.

Pros: As the largest online marketplace, eBay offers the biggest potential exposure.
Cons: Sellers have complained about changing fee structures and suspensions based on buyer feedback that leave sellers with little recourse to dispute claims.