Databases:

Cartoonists of Color 

Queer Cartoonists

 

Legal Aid:

Volunteer Lawyers for the Arts

Boilerplate Contract Template

How to Write an Illustration Contract

Copyright Info

 

Finances:

Change Order Form (A form to help you ask clients for more money when the scope of the project expands)

Taxes for Freelancers 101 by Kali Ciesemier 

Invoice and Deductible Expense Templates

 

Allies:

Freelance Solidarity Project  (Freelance Media Worker’s Union)

Illustrators Partnership of America

Creator Resource (contract templates & rates for cartoonists)

 

Industry Advice:

Jillian Tamaki on Coming up with Ideas and her FAQ about getting into comics and illustration 

Drawn + Drafted’s Dear Art Director (A Q&A with Art Directors)

Cheaper Alternatives to Adobe

Procreate

Affinity Designer

Gimp

Clip Studio

Corel Painter

TV Paint