The rise in sales has been helped by the low US dollar, said in its results, but even stripping that out, sales were up by 31% compared with the same period last year. Net profit rose by 30% to $143m for the period.
Amazon is predicting a rise in sales for 2008 of between 29% and 35%. However, the market was disappointed when Amazon said that its operating profit would remain largely unchanged. This was because of the cost of acquiring the .
Shares were down by 4% in after-hours trading, having closed up by $1.40 at $81.00 after the results were published.
Jeff Bezos, founder and chief executive of Amazon, said: "Our sales growth this quarter was driven by low prices and millions of in-stock items available for immediate shipment. We're grateful to our customers."