Memebook.com.ar
From Screamer Wiki
Memebook.com.ar is viral a shock site. It has been spread by lots of blogs and humor sites as a meme themed version of the the famous social network Facebook. When you acess the site, a loading screen,that consits of the words "memebook" and the "me gusta" meme, is shown. After some seconds, a flashing GIF of the vampire lady from Fright Night appears followed by a piercing scream (with the same scream of Jingle Bells Reversed)
Links
NOTE: The following link contains a screamer
web.archive.org/web/20120108041907/http://memebook.com.ar:80/
youtube.com/watch?v=nSMcN2xIgUg