How to Hit the Cymbals


One of my students lives on the other side of the globe and he could need some video tutorials on how to hit the cymbals. Does anyone know of any good video material for that? It's a lot easier to use videos that already exist instead of making my own : ) Suggestions for books and the like are, off course, also welcome.
Depends on the context (ie: crash, ride, hat, style of music, etc.). A lot of variables.