Wordpress YouTube Lyte plugin: http://www.a11ymetadata.org/wordpress-youtube-lyte-plug-in-now-supports-schema-org-accessibility-properties/
Learning Registry EZ Publish Tool: http://www.a11ymetadata.org/learning-registry-blazes-new-trails-with-accessibility-metadata/
Learning Registry Search Demo: http://www.a11ymetadata.org/implementations/learning-registry-search-demo/
Smith Kettlewell Described Videos: http://www.google.com/cse?cx=001043429226464649088:WMX1711548652&q=video%20description%20tutorial%20more:p:videoobject-accessibilityfeature:audiodescription