Welcome to this brand-new section: "Resources". It sounds useful, isn't it? 8D
Here I'm going to put some resources that I have found on the net and I think they are helpful for you (and also for me... :P ).
So, I start with this web: Posemaniac (I recently discovered it via Minaya's blog on Subcultura). What is it? It's a web where you can find uncountable body images with a lot of postures, like these below...
A characteristic of this site is that the images are in flash, and you can rotate it to see a full view of 360º of the body in each position. I find it really useful!