From Publishers Weekly:
Sales in Amazon’s North American media segment soared 38% in the third quarter ended September 30, to $1.08 billion, while sales for the entire company jumped 41%, to $3.26 billion. Net income rose to $80 million from $19 million in the comparable period in 2006. In the period, Amazon sold 2.5 million copies of Harry Potter and the Deathly Hallows worldwide, making it the largest new product release in Amazon history. Because of the deep discounts on the title, however, Amazon did not quite break even on sales of Deathly. The company said media sales also benefited from sales of Potter “attachments".