Resource Links
Sorry for the mess. These are partly just so I can find these links again, and I haven't had time to organize them more.
Websites
Art Prof - global community for learning visual arts
Ctrl+Paint - digital painting tutorials
Gurney Journey - James Gurney’s educational art blog
Muddy Colors - educational articles for aspiring and professional artistsÂ
Podcasts
Three Point Perspective - illustration
The Savvy Painter Podcast - painting
Draftsmen - drawing and painting
The Collective Podcast - broad range from traditional to CG
Assets
CC0 Textures - free PBR Materials by StruffelProductions
IES Library - IES Light Textures
HDRI Haven - free 360° HDRI for 3D lighting
Pixabay - images
Freesound.org - sound effects
Chocofur - models and shaders for Blender
USGS - satellite imagery (also see nationalmap)
Terrain.party - height maps from USGS
HDRLIB - textures and 360 HDRI
HDRI Skies - 360 HDRi Sky domes
Texturify - image textures for 3D
Figure Drawing Reference
Posemaniacs - online gesture drawing app
SenshiStock - clothed figure drawing poses
3D Assets
Mixamo - free character models and mocap data
Sketchfab - free and paid models and photogrammetry
Blendswap - free blender models
CGTrader - free and paid
Free3D - free and paid
Software
Blender - 3D everything awesomeness
Make Human - 3D human maker
Krita - fun digital painting software kinda like Photoshop
LMMS - have loads of fun making music
Davinci Resolve - editing and color correction
Adobe Color CC - a color wheel
Assets & Reference from: Cultural Heritage, Museums, Public Domain
NASA Images - and galleries