8. eBay.com

Customer service ranking: 6
What it sells: every category of goods, from vintage handbags to automobiles
2008 revenue: $8.4 billion
Best-selling items during the 2008 holiday season: Elmo Live, Hannah Montana holiday singing doll
Anticipated best-sellers for the 2009 holiday season: Fisher Price Elmo's Tickle Hands, "Fashionista" Barbie

The San Jose (Calif.)-headquartered Internet auction site is the place for last-minute shoppers to find items sold out elsewhere. To ensure that auction customers stay away from scam artists, eBay introduced the Security Center, which provides detailed tutorials on how to protect an account.