U.S. retailers are learning an important lesson this holiday season.
And it has nothing to do with the prices they set for Barbie dolls, video games or HDTVs.
The lesson being learned is that the successes of future Black Fridays won't be solely keyed to "door-busting discounts," or luring shoppers to stores at 3 a.m. In fact, as this year's Cyber Monday proved, U.S. consumers like to shop online. And that means that the merchants with the most enticing deals and most convenient Web sites will win the race for the dollars that U.S. shoppers drop on their online purchases.