Here's another link you might find interesting. Its a series of videos by Dr. Jonathan Crane of the TREC center in Homstead. Each video is short and about a specific cultivar or about tree management:
FruitScapes Video Blog UF/IFAS/TREC
there's a video on grafting mangos at the bottom of this page for those interested:
UF/IFAS Extension: Solutions for Your Life - Institute of Food and Agricultural Sciences