I have taken 2 classes which i thought were amazing. The Airway course EMS and the Airway course Emergency they are offered here: http://www.theairwaysite.com/home.html
Also took the SLAM class, Street Level Airway Management, it was also excellent and it can be found here: http://www.airwayeducation.com/
good luck. If you get the chance to take any of the 3 do it, they are awesome i learned so many tricks from the most amazing group of instructors.
Several of our faculty are instructors for the Airway Course and authors on the book with Ron Walls. Every year we have the course here and it is excellent. I'd recommend it strongly. Best of luck.