GNOME Accessibility Project has written a guide specifically for application development in the GNOME 2.0 desktop. It includes information using their Accessibility Tool Kit (ATK). Additional information is available athttp://developer.gnome.org/projects/gap/guide/gad/index.html.
IBM Accessibility Center provides links to a Java, Web, and Software accessibility checklist for application development. This site is located at http://www-3.ibm.com/able/guidelines.
The Web Accessibility Initiative Web site includes guidelines, checklists, and techniques for developing accessible Web sites and applications. Additional information is located at http://www.w3.org/WAI/.