Possible Clues:

• Parent company of Shopping.com
• Company name whose second letter is capitalized
• Where you may do your bidding?
• Self-described 'World's Online Marketplace'
• Ate in style
• PayPal purchaser
• Company with a 1998 Nasdaq I.P.O. that hired its first employee in 1996
• On-line auctioneer
• Site for online bids
• Where the auction is?