The Share Your Work section. You need 50+ posts to put your work up on there, but you can post right away. Please do not make a "mad dash" to 50 with a bunch of one liners. I suggest you spend the time critiquing other people's works, reading other critiques, and getting a feel for the certain genre sections.
Also, take a look around. Most of the question you may have can be answered if you looked into the forums, read the stickies, or search for it at the bottom of the page with the Google custom search bar.