Ok, here’s the deal.
What does every designer need now and then?
That’s right - stock-photos.
And what’s the best place to get those (not to be confused with the place to get the best) ?
Right again - free stock-photo sites.
So come on people, gimme your best free stock-photo resources.
http://www.sxc.hu/ <- here’s the one I always use
This will do more good in Drawing and Design than Kool Sites 
la la la la la
check the useful resources thread stickied at the top of the forum… theres a whole category of stock photo sites 
http://www.sxc.hu/ <- here’s the one I always use
that’s about it - what else do you need ??? it’s got to be the best out there…
sorry, didn’t even notice the drawing forum 
i use education.corbis.com but thats because my school gives out free accounts that last about 6 months. If you go to school for design, your school might do this too, check it out.
I’m going to lock this thread since there are a whole lot of good stock photo links here: