I love StoriesOnline. I post every story here that meets the SOL age requirement -- no sexual activity for characters under the age of 14. I write a fair number of stories that don't meet that criterion, which I post only to ASSTR.
This SOL age restriction has been in place just over 5 years now. Inspired in part by this anniversary, I will point to some of my personal favorites I posted during that time. I figure it might be of interest to those who like my work and would not be deterred by an underage character:
Buying a Girl for Sex and Love
The Vagina Fairy
A Soldier's Reward
The Empathy Pill
Naughty Dreams Come True in Heaven
Teflon Girl, Demon Girl, Angel Girl
Erotic Writing Workshop
Locked Up Naked in the Bathroom Together
Are You Sure You Don't Need to Use the Toilet?
Katy's Naughty Dreams
Scavenger Hunt
Nine Ways Into a Little Girl's Panties
The easiest way to find the web versions is via this title index:
http://www.asstr.org/~Sterling/groupalphaindex.html
The web page itself is here:
http://www.asstr.org/~Sterling/index.html
Text-only versions are all here:
http://www.asstr.org/files/Authors/Sterling/