for my reference and whoever is unfortunate enough to stumble here

Reference

www.conceptart.org
ctrlpaint.com
www.youtube.com
chiseledrocks.com

Digital Arts
www.youthedesigner.com


Tumblr Reference

ibelievepracticemakesperfect.tumblr.com
finaltrinity.tumblr.com - Master List

Public Domain Art Ebooks

matthewkinsey.com
www.alexhays.com

Figure/Gesture Drawing (potential nsfw)

artists.pixelovely.com
www.posemaniacs.com