I was doing a little bit of playing last night (sad, I know) but come across this new search feature in google, which allows us to search for content that is free to use, share and modify.
I done a quick search for dyslexia last night and came across tons of good stuff.
To do this search, go to Google and click on the ‘advanced search’ button. Toward the bottom of the page, there is a menu item that you can expand, called ‘Date, usage rights, numeric range, and more.’ Then you can use the ‘usage rights’ menu to get content that is more specific and more likely usable for the project.
Have fun
Peter