These are sites that Max recommends: Click on the logos to visit the sites (each opens a new browser window).
Ian "Max" Maxwell
Tactical Tracking Operations School Run by David Scott-Donelan in the US, this school is dedicated to instructing and practicing the art, tactics and skills of visual tracking to military and law enforcement and corrections personnel.
Survival School established in 1997 by Jonny Crockett, Survival School is one of the UK's premier wilderness bushcraft schools.