Here are some links that might be useful for you guys

Bonus Entry:

Share your ressources :D

These might be useful for anyone:

Gesture drawing tool for animals:

http://pixelovely.com/tools/animalgesture.html

Gesture drawing human characters:

http://www.pixelovely.com/gesture/figuredrawing.php

action stock photos:

http://jademacalla.deviantart.com/gallery/

Sweetmoons set of deviantart favorites:

http://sweetmoon.deviantart.com/favourites/38681038?offset=0

Retroatelier - Hollywood lightning reshots from all kinds of periods
http://www.retroatelier.com/en/models/

a vast archive of moviescreenshots

http://www.leavemethewhite.com/index2.html

australian war photographs, a lot of funky charismatic faces

http://www.flickr.com/photos/australian-war-memorial/with/2963002903/