Its a site called Posemaniacs which houses 3D(ish) rotate-able models of random poses for you to try and draw.
http://www.posemaniacs.com/
The images are in flash, and you just go to one and it loads up and you can drag to spin the pose for different angles. They even have fun camera angle ones so you can practice perspective proportion!
Also, there's a 30 Second Random Pose viewer so you can try and practice quick figure drawing to improve your skills so you'll be able to draw better!
its REALLY cool and a good resource for art nerds like me.
GO LOOK.
quick tiny thumbnails:


:3 i have posemaniacs bookmarked.