Curses Red, you deleted my post where I compiled a bunch of tumblr tutorials I had come across :/. Anyways I hope this is the right place to stick this in. Aside from the Loomis books, a lot of public domain art books are pretty disappointing. But I came across this Gesture Drawing for Animation pdf:
http://www.floobynooby.com/pdfs/gesturedrawingforanimation.pdfEven if you're not an animator, this is chock full of good advice and tips.
(By the way, though there is a little blurb that mentions it, this pdf is purposefully free and legal on the internet and based on the author's teaching notes. It had his approval for distribution.)
99 Problems and a Cat
Croi Desai vs. HR99
@ 12:30 AM Apr 23rd