I've posted a few pages of Scary Mary over at Fictionpress.com. FictionPress is the sister site to fanfiction.net, but FictionPress is for only original work. I have no hard figures, but I believe the median age of FictionPress is somewhere in the thirteen-fifteen age range, which is the age range of readers I would like to attract, and since these are all young writers posting on the internet, I believe they should be quite willing to read work over the internet. We will see.
I will have to be pretty involved with the FictionPress to get any sort of audience. Stuff there gets buried pretty quickly if it isn't updated often. I will be posting roughly a page a day there to try and stay on people's radar. We'll see what happens. I'll also post a few reviews there to get noticed some. If this works out, I'll hopefully get some feedback and maybe attract some readers over to SM's blogspot site.