I don't really read online fiction, I actually don't read fiction in general much at all. Why read stories when you can read facts?
Here are two online fictions I know about:
^^^^^^Just heard about this in a forum once, popped into my head when this assignment came up.
^^^^^^ A fictional "Chav" a subculture in England made up of uneducated young adults who huff paint, talk in a strange accent, live off of public assistance, and wear plaid hats.
Oh, and one more, this one I thought you should watch, if you want a laugh:It's by the same guys that do Devvo.