Authonomy.com is a site for writers to share their work and get critiqued. It’s sponsored by HarperCollins and the pay off is if you get your book in the top 5, they will review it.
If you are really interested in getting feedback for your work, sign up for this site and post 10,000 words. You will be exposed to thousands of writers worldwide who also READ. I guarantee that you will be get some helpful tips to make your writing even better.
You can sign up and read a few works first to get a feel for how it’s done, and you will see that not everyone commenting has your best interest at heart (they want you to shelve their books) but I found some really good critics here and read some really good stuff that I was surprised was not published yet. Anyway, give it a try and see what you think.