What Frustrates Screen Reader Users on the Web: A Study of 100 Blind Users

Blind users in this study were likely to repeatedly attempt to solve a frustration, not give up, and not reboot the computer. In this study, the blind
users reported losing, on average, 30.4% of time due to these frustrating situations. Implications for Web developers, screen reader developers, and screen reader users are discussed in this article.

Read more at
http://www.badeyes.com/?p=340#more-340