You may wish to add
readassist to your list of resources. They maintain links to a bunch of websites that provide reading assistance for people with various disabilities. They also administer Baen's "free webscriptions for the disabled" program* -- link to apply is on their front page.
Xenophon
* Shortly before his death, Jim Baen decided that they should offer permanent free passes to Baen's online output for disabled readers. Now (several years later) the program is finally up and running. Disabled readers who are into SF and Fantasy can get free access!