Amazon just announced that November was its best month ever for Kindle sales. This excludes sales from today's so-called Cyber Monday. According to Amazon, the $259 Kindle is the "most wished for, the most gifted, and the #1 bestselling product across all product categories on Amazon." Barnes & Noble is also seeing strong demand for its new nook e-reader, but is unable to fulfill current orders before Christmas. The company has also delayed shipments to its stores until December 7.
Neither Amazon nor Barnes & Noble have announced any exact numbers for their e-reader sales. At the beginning of the holiday season, many pundits assumed that e-readers would be extremely popular gifts this year.
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We haven't heard any numbers from Sony yet, but chances are that the Sony Reader Pocket and Touch editions are also doing quite well.