ACCESSIBLE (an EU FP7 project spanning over 36 months) will keep its survey online that aims at identifying the user needs of Developers, Accessibility Assessors, Elderly and Disabled People, Public Bodies, and Service Providers in the field of accessible software implementations.
If you are interested in contributing, these questionnaires (accessible via http://www.accessible-project.eu/index.php/questionnaire.html) are completely anonymous, and are available in German, Greek, Portuguese, Italian, English, and Bulgarian.