PW: "December 25 and 26 were the two biggest e-book sales days ever for Random House, the publisher reported today. Combined e-book sales across e-retailers on those two days rose more than 300% over last year's sales for the same two-day period, which had been Random's best two-day e-book sales period ever. ... " Note that Random House does not make its content available via iBooks, yet nevertheless seems to be surviving.