Occasionally, I get requests for "hoax sites" to use in media lessons (checking for web accuracy, etc). Here are a few of the more well-known ones, along with some lists of additional sites compiled by others. (There is also a link to a "video game spoof" to see what kids know about being cyber-safe.)
West Coast Tree Octopus
California's Velcro Crop
Boilerplate Man
Dihydrogen Monoxide Research
More Bogus Website Lists
The Adventure of the Three CyberPigs
In this game, designed for ages 8-10, the CyberPigs play on their favourite Web site and encounter marketing ploys, spam and a close encounter with a not-too-friendly wolf