The following survey is a follow-up to the original WebAIM Screen Reader User Survey, and follow-up surveys in September 2009 and December 2010. This survey is primarily intended to collect new information and track updates/trends from previous surveys. By completing this survey you will help inform development choices for those creating accessible web content and web standards. All screen reader users, even those who use screen readers only for evaluation and testing, are invited to participate.
The survey will remain open through May 25, 2012.
Read more at
http://webaim.org/projects/screenreadersurvey4/