http://usablesecurity.com/2006/07/14/jennifer-rode-carolina-johansson-paul-digioia-roberto-silva-filho-kari-nies-david-nguyen-jie-ren-paul-dourish-and-david-redmiles-seeing-further/ Every system has a user. Wed, 07 Jan 2009 12:54:28 +0000 http://wordpress.org/?v=abc