2010-01-22 Amazon印税率を70%に大幅引き上げ、焦土戦に突入。概要と雑感。 business service http://fladdict.net/blog/2010/01/amazon-kindle-70.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+jp/fladdict+(fladdict.net)&utm_content=Google+Reader