Had the pleasure of working with Luta Livre Champion and coach to a number of UFC fighters - Marcelo Brigadeiro a number of years ago, filmed an 8 part series of full length instruction vids...
Some really interesting techniques, variations on more common submissions, along with a lot of techniques that might get classed as 'dirty grappling' under certain rules... very good for MMA though and general no-gi fighting.
Just got the series back online so making them available for free
First 2 episodes, each approx 40-45mins long are currently online now on the following link.
The rest being added soon :)
Hope you enjoy and let me know what you think?