This is a shameless plug for a new Disability Studies book that is coming out in May.  Mark Friedman and I have a chapter included, Self-Advocacy: The Emancipation Movement Led by People with Intellectual and Developmental Disabilities.  For more information you can take a look at the  advance information from the publisher at:

http://us.macmillan.com/disabilityincarcerated/AllisonCCarey