Since CNBC interviewed me about Harry Potter and the Deathly Hallows, the last book in the famous series, leaking onto the internets, there have been further developments. Scholastic, Potter's U.S. publisher, is threatening legal action against DeepDiscount.com, an e-commerce website which only started selling books five months ago. While it appears DeepDiscount.com did break Scholastic's embargo, it's not clear that the copies — photographs of pages, really — leaked onto file-sharing networks actually came from the online retailer. Not that any of this will hurt sales, as I told CNBC, of course. Most people don't dress their kids up in wizard costumes and stay up until midnight to download torrents. And the few dorky enough to do that placed their "Potter" pre-orders on Amazon.com months ago. (Video from CNBC)

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