It seems YouTube will soon discontinue the text-based “annotation” feature that made interactive videos like this possible.
What Could Have Entered the Public Domain on January 1, 2015?
Mars Curiosity rover sings 'Happy Birthday,' dares Earth to collect royalties
What Jane [Austen] Saw: 1796 Shakespeare Gallery
Churning Out More Non-profit Arts Promos
The Pentagon has ordered Stars and Stripes to shut down for no good reason
Multimodal Composing, Sketchnotes, and Idea Generation