(自費出版の電子書籍100万部)
http://www.asahi.com/national/update/0621/TKY201106210122.html?ref=reca
(図書館)
http://jp.reuters.com/article/topNews/idJPJAPAN-23978420111103
(契約)
http://news.livedoor.com/article/detail/5977004/
(電子が紙を上回る)
http://book.asahi.com/ebook/TKY201105200111.html