http://internet.watch.impress.co.jp/docs/news/20100826_389478.html

http://networkedblogs.com/7bzQF

http://www.zephoria.org/thoughts/archives/2010/08/23/social-steganography-learning-to-hide-in-plain-sight.html 久しぶりにSteganographyがついた記事を見つけたのでメモ。