"I remember reading a children's book about a form of Nithling (in the book, Keys to the Kingdom, a Nithling was something made from nothing) that could be small and the strecth itself out. The description of the grown version seemed just like Slenderman."
Not even Rebecca Black is safe!
"I have a couple of sightings! I was in an art show at my school last week, and someone did a 7 foot tall cardboard sculpture of Mr Operator, hiding in the corner of one of our stairwells. I also saw a poster on one of the doors that had a man in a suit (with no face) and a big circle with a single line through it."
Now apparently cornening the Deviantart Ad Market D:
Phil Ivey Full Tilt Poker Commercial - Assassins