I think a pretty good site would be:
writerscafe.org ...
It offers you to make friends and have people read your work and comment on it. If you don't want someone to see what you've written then you can make it un-openable to others. You can join for free, comment, rate, make friends, and most important of all ... WRITE!!! There are also many contests and groups available, some contest holders even have free publication as a prize. *Oh! and let's not forget copyright!!!*
