From Publishers Weekly:

The Publishers Weekly Stock Index managed to eke out a 1.7% increase last year, thanks largely to Amazon.com. Shares soared nearly 135% while the stock fortunes of traditional book stores fared much worse, particularly Borders Group, which lost half of it’s value in 2007. Even bookstore leader Barnes & Noble couldn’t escape the downward pressure on stocks in the segment—its stock price fell 13.2%.