YouTube adds annotations (and speech bubbles)
You can use three different formats, speech bubbles, notes, and spotlights. You can see a speech bubble in the image above. A note looks pretty much the same, but without the arrow pointing toward a mouth. And the spotlight lets you draw a box around some element in the video. When a user scrolls their mouse over that element, the text will pop up.
Annotations are easy to customize. You can change the size, location on the screen, and location in the video. You can also adjust how long they stay on the screen.
[via Google Operating System]
