In December 2007, Chris Forcand was arrested in his Toronto apartment and charged with luring an underage girl, possessing a dangerous weapon and other related offences. Forcand, then 53, had posted nude photos of himself in Internet chat rooms and tried to proposition young girls. After some of those lurid conversations were sent to members of his church, Toronto police’s Child Exploitation Section was called in. Forcand was later sentenced to 12 months. The cyber-vigilantes who uncovered his activities and brought about the arrest did not reveal their identities. But subsequent reports linked them to the Internet group Anonymous, which grew out of a message board site, 4chan.org, that is arguably one of the odder places you’ll find online.

If you’ve never heard of 4chan, you’re probably still aware of some of its actions. Its users have created some of today’s most popular Internet memes, such as Rickrolling, which blasts people’s computer screens with a link to the Rick Astley song Never Gonna Give You Up, and lolcats, those photos of cutesy felines accompanied by broken English captions like “I can has Cheezburger?” (itself an irritating slang called lolspeak). Remember the buzz about the Chocolate Rain song, by Tay Zonday? Its popularity partly stemmed from a joke—channers decided to boost its ratings because of its absurd lyrics and melody; it was eventually covered by John Mayer and others. With more than 300 million page views per month, 4chan can create news simply on the basis of size. When something becomes a trend on the site, it will likely hit your computer screen soon, explains Tim Hwang, a research associate at Harvard’s Berkman Center for Internet & Society.

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