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Amazon is making it impossible to remove the DRM from Kindle Books
(goodereader.com)
This is a most excellent place for technology news and articles.
Why are people "buying" DRM infested books? They don't own anything. "Their" books can be taken away at the whim of the seller. Their rights can change with a change to the EULA. There are other legal ways to use e-readers (not Kindles) that let you keep and back up what you buy.