While I can understand the excitement, I do have to caution you that anything put up on your website cannot be sold as a new work in many of the leading markets. It used to be all, but that's changing. What isn't changing is that first electronic rights are gone.
One story or two is no big deal, but you have to understand what your goals are and be sure that this helps, not hinders those goals.
Don't worry, the stuff I'm putting on there, I'm writing specifically for it. I won't be putting up anything that I'll be sending out for publication... I know that anything over 10% online is pretty much considered published, if they'll still take it afterward at all.
This site is a place for me to post my some of my writing and a novel that I consider will be unpublishable (While I am trying to remove all "gaming" references from it, the novel at least, is still based on a D&D story and characters... perhaps I could self-publish it, but I can do that regardless of how much I put up on my site).
Plus, it's my own little push to keep me writing. Knowing that people are just waiting for the next installment means that its easier to have BICHOK.