Hi! My company is (finally) started to up our game with email design (about time, since it's the heart of our business as a publisher/media company ... ). We're not at the point where we know enough to hire email designers/developers full-time.

Can anyone point me to sites where can I source qualified email developers to hire on a freelance basis? Also, any tips you may have on validating potential freelancers would be much appreciated. I'm afraid we don't know what we don't know!