I signed up for Angie's list and used them once, but they kept charging my credit card with an automatic yearly fee renewal. You gotta read the fine print!
When I finally figured out what was happening and complained, Angie's list refused to remove the charge. The fine print about auto-newal is probably technically legal but highly unethical.
The problem here is that most people don't even notice the extra charge by Agnie's list or feel it is too much of a bother to complain. Morale: read the fine priont when dealng with Angie's unethical business practices (even tho legal).