Not too sure if I should post this in here, but for me it goes under the "topology" research, its a series of videos from youtube going over drawing for anatomy study, which i'm sure will be helpful to everyone creating human models in 3d.

https://www.youtube.com/profile?user=RivenPhoenix

I cant take credit for the link as I got it from a post on ZBrushCentral, with the thread started by Cannedmushrooms.

Hope its ok to post this here and its useful to everyone.