Starting this topic to assemble a fairly comprehensive list of all the video tutorial resources available online related to 2 string / dual line / stunt kite / sport kite flying... The list below is somewhat categorized by variety of knowledge, ideally getting more robust and eventually more complex as you work your way through.
Kite Loft - Fundamentals as taught by kite store staff.
Hosted by MonkeySee.com
Dodd Gross - Fundamental and freestyle trick tutorials.
Dodd's YouTube channel
DVD - Flight School (no link)
DVD - Flight School II (no link)
DVD - Flight School III (no link)
DVD - Flight School IV: More Tricks (YouTube)
Prism Kites - Fundamental and freestyle trick tutorials.
The Way To Fly
Advanced Way to Fly
Misc tutorials (YouTube)
Reed Design - Animated practice / competition maneuvers (flight paths).
International Rule Book (IRBC) for team, pairs and individual
Stunt Team Competitive Kiting (STACK) for team, pairs and individuals
Randy Greenway (aka RandyG) - Freestyle trick tutorials.
Archive on Kite Clique
RandyG on Vimeo
Mama74 - Freestyle trick tutorials and studies (repeated examples).
Mama74 on YouTube
Comete tutorial (YouTube)
allkabi - 3D animations of trick maneuvers.
Fractured Axel (YouTube)
Flap Jack (YouTube)
Roll Up, Half Lazy, Unroll to Fade (YouTube)
Trick Sequence 1 (YouTube)
And some added info (non-tutorial)
Trick List (not complete)
I'll likely reorganize as time goes on, but please feel free to add anything you've found in a reply and I'll add it to this lead post if I think it fits into what I want to end up with, otherwise it'll stay part of the discussion here - thanks!