4chan

4chan is an English-language imageboard website. Launched on October 1, 2003, its boards are primarily used for the posting of pictures and discussion of manga and anime. Users generally post anonymously and the site has been linked to internet subcultures and activism, most notably Project Chanology.
4chan users have been responsible for the formation and/or popularization of Internet memes such as lolcats, rickrolling, and "Chocolate Rain". The site's "/b/" board is by far its most popular and notorious. It is known as the "random" board in which there are minimal rules on posted content. Gawker.com once claimed in jest that "reading /b/ will melt your brain".
Users of 4chan and other websites "raided" Hal Turner by launching DDoS attacks and prank calling his phone-in radio show during December 2006 and January 2007. The attacks caused Turner's website to go offline. This cost thousands of dollars of bandwidth bills according to Turner. In response, Turner sued 4chan, 7chan, and other websites; however, he lost his plea for an injunction and failed to receive letters from the court.
KTTV Fox 11 aired a report on Anonymous, calling them a group of "hackers on steroids", "domestic terrorists", and collectively an "Internet hate machine" on July 26, 2007.
Slashdot founder Rob Malda posted a comment made by another Slashdot user, Miang, stating that the story focused mainly on users of "4chan, 7chan and 420chan". Miang claimed that the report "seems to confuse /b/ raids and motivational poster templates with a genuine threat to the American public", arguing that the "unrelated" footage of a van exploding shown in the report was to "equate anonymous posting with domestic terror".