New/modern OpenGL shading/shadowing algorithms...

I am looking for new variations of OpenGL rendering related algorithms that have been published in the last 5 years (in worst case 10 years). I’d prefer something related to forward rendering, deferred rendering, shading or shadows generation, but it can be any algorithm as long it’s new…
I need them for educational purposes and I will implement them.
I have already implemented shadow volumes/shadow mapping and similiar things many times in the past, but those algorithms does not meet my criteria because they are older than 10 years…
Any suggestions are welcome.

This is a place where to look for. Just make some researches and filter by years.

With source code :
shadow volume accelerated data structure here :
With out source Code irregular z-buffer technique:
And a lot of shadow techniques :