From The Seattle Times:
Amazon.com released a statement this afternoon seeking to explain why thousands of books — including many gay- and lesbian-themed titles — were removed from its sales rankings over the weekend.
"This is an embarrassing and ham-fisted cataloging error for a company that prides itself on offering complete selection," said Drew Herdener, the Seattle company's communications director.
"It has been misreported that the issue was limited to Gay & Lesbian themed titles — in fact, it impacted 57,310 books in a number of broad categories such as Health, Mind & Body, Reproductive & Sexual Medicine, and Erotica. This problem impacted books not just in the United States but globally. It affected not just sales rank but also had the effect of removing books from Amazon's main product search."