Slender Maniacs, Beware

The Slender Men are comin' to attack your social network - sorry, all other extraterrestrials!

Motiphph

Killingphinger

Claxxxtorrieei

Maq

HopperLuup

XeroXone

Maxxximillyon

Kenmohr

(via [http://The Slender Man The Slender Man])