CAST is a non-profit education and research and development organization that works to expand learning opportunities for all individuals through Universal Design for Learning.
www.cast.org

CAST – UDL at a Glance
For an overview of Universal Design for Learning, watch this five minute video.
https://www.youtube.com/watch?v=U1B6yQXsr0c&t=86s

UDL On Campus
Universal Design for Learning in Higher Education
Although it is geared toward higher education, it is more relevant than some of the K-12 information about UDL.
http://udloncampus.cast.org/home

Disabilities, Opportunities, Inter-networking, and Technology (DO-IT)
Helps to increase the successful participation of individuals with disabilities.  Provides guidelines and examples of UDL.
https://www.washington.edu/doit/programs/center-universal-design-education/introduction-universal-design-education

National Center for Accessible Media
Provides information and resources for expanding access to educational and media technologies for students with disabilities.
http://ncam.wgbh.org

National Center on Universal Design for Learning
Provides a wide variety of information about UDL, including implementation, research and resources.
http://www.udlcenter.org/

UDL Tech Toolkit
UDL Tech Toolkit- this website offers audio books, text to speech, graphic organizers, study skills tools and more technology tools based on Universal Design for Learning.
https://sites.google.com/view/freeudltechtoolkit/home