http://www.quickposes.com/
Select a ‘challenge’, scroll down, select a time limit, check off if you want upside-down mode or not, then click start. It will toss pics of real people (photos, not art pieces) in various poses for you to work on gesture drawing.
Sometimes I screencap a particular pose if I want to a detail study of it for later, rather than a gesture study. I find gesture studies with the time limits are really good at forcing you to learn the bare minimum basics about how poses move/work. Is good study.
Sorry I still haven’t drawn that gozu, stopsignal! I uh. Hangout time with my buddy today resulted in a tyrannosaurus/tiger/cat hybrid doodle, which is not CDDA at all. Gozu will happen when I don’t have work. BLEH!