I love creepypasta but I'm a massive wimp so I can't sleep after reading them.
There was some about a kid who found some local TV show run by a serial killer, who invited kids into his basement and made shows with them. That one was my favorite.
Candy Cove or whatever about the old TV show was really good, not that creepy though.
Abandoned by Disney is pretty creepy, but the ending doesn't really work.
Jeff the Killer isn't scary. I don't understand why people think it is.