Back in June, we launched Video Annotations, a feature that allows you to add background information, create branching ("choose your own adventure" style) stories or add links to any YouTube video, channel, or search results page -- at any point in your video.

Being the creative lot you are, we should have anticipated all of the amazing uses that you would have found for this feature: you are putting it to work to create elaborate narratives and games, teaching tools, promotional enhancements, and much more. Take a look at these innovative applications of Video Annotations.

A collection of unusual artworks and unconventional art materials, from the art cars of Burning Man to the butter sculpture of the Ohio State Fair. Coffee art, bubblegum art, delicate water calligraphy and more.

At a time when Hollywood blockbusters often push the two-hour mark, it can be exhilarating to catch videos that can make a point in a minute. Here are 12 examples of tight, punchy film-making.