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The requested URL /bookmarks/url?url=http://www.macworld.com/article/164725/2012/01/amazon_introduces_ipad_kindle_store.html&ei=3FEQT4f5I4KANdOFjfEE&sig2=L5uLICU-q88j9f5LJuul-A&ct=b was not found on this server. That’s all we know.