Some preliminary webpages about forks and a renegade trident or two are at
http://www.silverwolfwushu.com/WeaponsForks.html
so far, the only wushu fork video I have located is a short on YouTube
It features the dragon whisker fork – long xu cha as performed by
Sijo Abdul Mutakabbir a student of the famed Sifu Chan Tai San.