Why "Bobby Approved" Does Not Always Mean Accessible
http://infocentre.frontend.com/infocentre/articles/whybobbyapproveddoesnotalwaysmeanaccessible.html

Quinn, Anthony
Frontend Infocentre
2001

Abstract:

Bobby is an online testing tool which has been developed to help developers assess web sites for accessibility. It is a free service provided by CAST (Centre for Applied Special Technology), a non-profit organisation which aims to expand opportunities for people with disabilities through computer technology. Bobby looks at the underlying HTML code that controls the presentation of a web page and analyses it against the W3C Web Accessibility Initiative (WAI) guidelines. Many organizations genuinely believe that if their site passes the Bobby test and displays the Bobby icon, it is 'accessible.' In many ways, this is an understandable outlook. The 'Bobby Approved' icon represents an achievable standard and a tangible, recognisable endorsement of efforts made towards web accessibility. However, it should be remembered that the Bobby test does not ensure true 'accessibility.'