Whether it belongs here or not, that's an interesting site.
Anyway, the way to go about it, is to simply ask if anyone here is interested in taking a peek at what you have. If they say they will you can exchange e-mails though pm and send it to them.
It would be helpful if you post a general idea of how long it is and what the subject matter is as some material may be offensive to some and not others
I am an officially vetted author because people here have seen my web site.