CSULB Tutorials and other information for creating accessible instructional materials are available here:
The CSU is committed to providing the resources, tools, training and expertise to ensure that instructional materials and the technology used will be accessible to all. Information materials and technologies include, but are not limited to "computer and network access and services, computer-delivered or enhanced instruction, library electronic information resources, library online catalogs and homepages, campus informational web sites, computer-delivered or assisted administrative services, and voice and video programs and services." (E.O. 926)
The legal requirement is not the only reason that departments of education need to promote accessibility of information technology resources. The most important reason is that accessibility of these resources gives students with disabilities greater independence in reading, writing and other academic areas. Accessible technology enables all students to participate in mainstream classroom activities and equips them with the skills they will need to succeed in the technology-centered workplace. Eliminating barriers to technology helps states meet the goal of improving the academic achievement of all students!
Source: Why is Technology Access for Students With Disabilities Important? [pdf]