Love the tools you have here, been using them every day for months now.
I regularly read the Muddy Colors blog which has a nice mix of process, business and showcase and it recently had a post with answers from an AMA with professional Art Director, Lauren Panepinto.
She discusses getting found, getting paid, and how to get repeat work (tl;dr: be nice, good, and on time).
Thought it might be of interest to any budding professionals here.
Another interesting site is the Living Lines Library, which has an insane collection of original art, pencil tests, backgrounds, character sheets and storyboards from basically all the Disney movies. An absolutely fabulous resource.