www.youtube.com/watch
http://viewer.zmags.com/publication/0c5c4023#/0c5c4023/1
http://www.vimeo.com/7947528
http://www.tricktionary.it/08/libro-windsurf/le-sezioni-speciali.html
http://www.youtube.com/watch?v=RNzks5M-sJ4&feature=player_embedded
http://www.youtube.com/watch?v=NyIddLU9PM4&feature=related