There are bits of yoga(ish) and stretchy practices in these collections - Best wishes!
Running, Football, CrossFit, Barbells, Mud Runs, Warm-Ups, Cool-Downs
Running, Football, CrossFit, Barbells, Mud Runs, Warm-Ups, Cool-Downs
Qigong & Taoflow Qigong & Taoflow
Pilates: Traditional & Modern Fusion Pilates: Traditional & Modern Fusion
Barre Barre

Active Weblinks:
Flow Yoga: Intermediate-Advanced Flow Yoga: Intermediate-Advanced
Ashtanga Yoga Primary Series Ashtanga Yoga Primary Series

Bonus: there are more yoga videos in these two collections:
Mobility, Recovery, Physical Therapy Mobility, Recovery, Physical Therapy
Team GymRa Pranayama & Chair/Office Yoga
Enjoy! :)

Maybe you might find advanced videos that you enjoy in these collections - Good luck!
Flow Yoga: Intermediate-Advanced Flow Yoga: Intermediate-Advanced
Ashtanga Yoga Primary Series Ashtanga Yoga Primary Series

What are the most advance yoga classes?

Hi - I apologize for not answering sooner. I haven't noticed the "yoga forums" section before. I love Andrew Sealy's program.
Here is a list of all of Grokker's yoga videos to date, organized into collections (beginner ones first).
Hopefully this inventory might help you select your preferences at a quick glance. Good luck!

Meditations, Yin, Pranayama Meditations
Gentle Yoga: Gentle/Restorative/Yin Yoga
Flow Yoga: Beginner-Intermediate Flow Yoga: Beginner-Intermediate
Flow Yoga: Intermediate-Advanced Flow Yoga: Intermediate-Advanced
Ashtanga Yoga Primary Series Ashtanga Yoga Primary Series

Yoga by Candace Cabrera Moore Tavino Yoga by Candace Cabrera Moore Tavino
Yoga with Samara Chopra Yoga with Samara Chopra
Yoga with Karen Dubs of Flexible Warrior Yoga with Karen Dubs of Flexible Warrior
Yoga with Esther Ekhart of Ekhart Yoga & Yogatic Yoga with Esther Ekhart of YogaEasy (formerly Ekhart Yoga & Yogatic)
Yoga with Adriene Mishler Yoga with Adriene Mishler
Yoga with Julie Montagu Yoga with Julie Montagu
Yoga with Celest Pereira and Siri Peterson Cavanna Celest Pereira & Siri Peterson Cavanna
Yoga with Tara Stiles Yoga with Tara Stiles
Yoga Journal and Kathryn Budig Yoga Journal & Kathryn Budig

Bonus (a few yoga videos in these collections):
Prenatal Fitness and Yoga Prenatal Fitness & Yoga
Fitness with Team BeFit and Scott Herman Team BeFit & Scott Herman

Hi all! What do you do when you run of programs to complete? I've finished all the ones (some multiple times) that meet my criteria: Intermediate & mostly under 40 minutes (as I have limited time before work and don't sleep well if I practice after work). I'm more likely to follow a program as it takes the guesswork out of "What's next?" and I like to see the progression. Any idea how often Grokker adds new yoga programs? I've also searched for stand-alone videos with that criteria, but they've been pretty hit-or-miss. I'd love your recommendations; what are your intermediate under 40 minute favorites? For reference, my favorites have been Annie Adamson's Primal Vinyasa series, Celest Pereira's Morning Yoga series, Julie Montague & Brett Larkin. Thanks!