"As if the textbook industry didn't have an image problem already...

Elsevier officials said Monday that it was a mistake for the publishing giant's marketing division to offer $25 Amazon gift cards to anyone who would give a new textbook five stars in a review posted on Amazon or Barnes & Noble. While those popular Web sites' customer reviews have long been known to be something less than scientific, and prone to manipulation if an author has friends write on behalf of a new work, the idea that a major academic publisher would attempt to pay for good reviews angered some professors who received the e-mail pitch. [...]"