YTMND

YTMND is an abbreviation of the phrase "You're the Man Now, Dog", is an online community or a memetic hub site that hosted web pages featuring a centered or tiled along with an image, a large zooming text, and a looping sound file, Images and sound files used in YTMNDs are usually either created or edited by users, the site allows pornographic and Gore Images, Screamers and more. sometimes they will be taken down for reasons.

Link
NOTE : The following website contains links to multiple screamers alongside with shock sites.
 * ytmnd.com
 * YTMND Category