Best resources for learning PLO

[CheapFlop]

So I dabbled in PLO after getting a little bored with grinding (and winning) at NLE50. I like it, but realize that it is an entirely different game and requires a lot of education.

What resources/books/etc are the best for learning this crazy game? Is there a forum/site that is best for this particular game.

I have Super System 2 and have been reading that chapter, have read the strategy articles on this site, and have glanced at the forum on 2+2.

Any other advice/suggestions would be greatly appreciated.

Cheap