Winter Olympic events are filled with subtleties that if you know about them, can help you appreciate athletes' skills and the sports a bit more. The New York Times published three explainer videos to help you do just that. So far, there's one on slopestyle, which has roots in the Winter X Games, another on the luge, which is freakin' dangerous, and the halfpipe, from Shaun White's perspective. The features are a nice combination of video, graphics, and narrative.
If you're watching the Olympics, do yourself a favor and bookmark NYT Olympic coverage.