http://Web Content Accessibility Guidelines (WCAG) 2.0 https://www.boia.org/blog/checklist-for-creating-accessible-videos WebAIM: Web Accessibility In Mind http://AEM Center: Vetting for Accessibility https://www.washington.edu/accessibility/web/ https://edu.google.com/teacher-center https://www.csun.edu/universal-design-center/digital-media-and-documents https://www.rev.com/blog/resources/open-caption-vs-closed-caption-whats-the-difference https://www.accessibilityassociation.org/s/ https://aem.cast.org/acquire/vetting-accessibility