Designing for Screen Reader Compatibility
http://webaim.org/techniques/screenreader/

WebAIM
2007

Abstract:

Techniques that work for one screen reader almost always work in other screen readers. In some cases, one of the screen readers has capabilities that the others do not have, or handles some types of content better than the other screen readers. Still, developers are almost always better off when they focus on accessibility standards and generally-accepted accessibility techniques than when they focus on screen reader differences.