Still, fourth-quarter sales were up 29 percent from the third quarter of 2003.
Amazon said its fourth-quarter sales were above $960 million, up 42 percent from a year earlier.
Fourth-quarter sales were up 13 percent, to 2 billion Canadian dollars.
But Barnesandnoble.com's fourth-quarter sales to consumers jumped 11 percent from the previous year.
Fourth-quarter sales will be up about 18 percent, to $423 million from $359.6 million.
Fourth-quarter sales were up 55 percent, to more than $2.2 billion, from $1.4 billion a year earlier.
The company's fourth-quarter 1995 sales and earnings reflected the impact of a 10-week strike.
It has been telling analysts that fourth-quarter sales would rise more than originally expected.
Fourth-quarter sales were $1.34 billion, up 11.7 percent from $1.2 billion last year.
Amazon.com said Wednesday that its fourth-quarter sales were $250 million, up from $66 million a year earlier.