- oDesk
- rent-a-coder (need i say more?)
- script lance
- elance
a word of caution: insist on good references. don't just take previous work samples for granted. anyone can show you a cool AJAXy website they had their friends whip up in the past. look for 'real' work. look for projects that still live today, and make money. (i've had a horrible experience with a so called e-lancer, and it cost me way more than i intended to save!)