Have you checked out Sparkly Red Pen? They offer Beta, prereading, and Contest content checks!
Its a great site to help you become better as an author. They pride themselves on communication. If they suggest you change something, they will tell you why and help you learn from it. The goal being that after 5 chapters, you will be good on your own!
**click on banner to be taken to the site and see what all they have to offer!
