Ever bought a book from Barnes and Noble, then turned around to find it missing from your bookshelf and replaced with a voucher? Bizarre though it may seem, that's exactly what's happened to hundreds of owners of George Orwell's 1984 and Animal Farm books, with Amazon remotely deleting copies on user's Kindles and crediting their accounts.

While this might be understandable if the copies were distributed illegally, the cause here appears to be a publisher which decided it simply didn't want to offer a Kindle edition any more. Amazon's response, as posted in the forums:

The Kindle edition books Animal Farm by George Orwell. Published by MobileReference (mobi) & Nineteen Eighty-Four (1984) by George Orwell. Published by MobileReference (mobi) were removed from the Kindle store and are no longer available for purchase. When this occured, your purchases were automatically refunded. You can still locate the books in the Kindle store, but each has a status of not yet available. Although a rarity, publishers can decide to pull their content from the Kindle store

All of which underscores the fact that "buying" a book in the digital realm isn't the same as "ownership" in the real world. As David Pogue at the NYTimes explains: "apparently the publisher changed its mind about offering an electronic edition, and apparently Amazon, whose business lives and dies by publisher happiness, caved. It electronically deleted all books by this author from people’s Kindles and credited their accounts for the price."

Or as one of Pogue's readers describes it, "it’s like Barnes & Noble sneaking into our homes in the middle of the night, taking some books that we’ve been reading off our nightstands, and leaving us a check on the coffee table."