During the past 18 months we've seen a dramatic shift in customer preference from print to digital when looking at sales from oreilly.com, which is a substantial sales channel for us. And looking across all of our sales channels for individual ebooks -- including mobile apps -- 2009 ebook revenue was up a staggering 104% on 2008 (which was more than 50% above 2007):
oreilly.com
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