4Chan: The Rude, Raunchy Underbelly of the Internet
Ever get your MySpace page hacked into? Chances are it was 4chan's fault.
Surfing YouTube and suddenly find yourself watching an old Rick Astley music video? You were "rickrolled" by 4chan.
Enjoy reading Sarah Palin's personal e-mail? She's got 4chan to thank for that.
Hear someone shout out the ending of the latest Harry Potter book while you're in line at Barnes and Noble? 4chan strikes again.