Hello and welcome! Just like Shatterheart said, the blogs are a great way to get people to read your stuff and ask for opinions about them. A lot of people on here are more than willing to take a look a anyone's pieces if they are looking for feedback. Good luck with your writing and I hope you like it here!
Are you new here? If so, Welcome to Mibba! To answer your question on the Intro forum, Mibba is still alive. It's not busy-bee active as it used to be years back, but currently there is a group of members here working on the Mibba Revival project!
If you would like, you can write a blog to introduce yourself there and even ask for input on your story. I know there are a lot of people there. Just be sure to follow the blog rules: easy stuff, like be respectful, no spam, no kicking, no screaming, etc.
If you have questions, feel free to ask! Everyone here is pretty friendly!