Physics underflow is a new forthcoming physics community for beginner and undergraduate level people. It will be free from policies and strict rules. It will not be a Q2A library. It will be a community. Genuine questions will not be closed as homework. Those who need help for resource recommendation will be helped. It will be a community like Math.SE. There will be fun, not humiliation. A community website free from some old cranky farts.
Another good proposal of Physics homework questions is here at area51:
The above proposal is not meant to do-your-homework- rather it is meant to help people, who genuinely try to solve physics problems for understanding the concept behind that problem, by telling them where they got wrong in solving a particular problem and what they should try to further.