Macromedia – How can I add empty ALT values to image objects? explains how to customize Dreamweaver so that empty alt tags can be added to img tags. For images used as spacers or other non-content purposes, adding an empty alt tag allows text to screen readers to ignore the image.
The WAVE 2.0 web page accessibility check gives you a report on whether your web page is accessible to people with disabilities. A slightly different approach from the better known Bobby disability page.
UsableNet – Website Testing Systems. UsableNet offers free Dreamweaver technology to enhance the product’s accessibility support. UsableNet also sells some software for developing accessible Web sites.
Section 508: The Road to Accessibility is a government site with information about Section 508, which requires that Federal agencies electronic and information technology is accessible to people with disabilities.
How to create accessible forms from WebAIM is aimed at people who want to make a form usable by a screen reader, but also looks at good form skills in general.
Knowbility, Inc. Knowbility promotes barrier free Information Technology – creating greater access to I.T. opportunities for youth and adults with disabilities.