Any scheme or organization that promises quick financial rewards for little effort, esp. those that attempt to show a happy 'community of users'. Usually promotes itself with many (often over-emphatic) so-called personal testimonials.
Examples of econocults:

"Sign up 5 of your friends to our great offers, and get a FREE Ipod!"

"I earned over $20,000 in the first five minutes on the Amazing Crazy Cash system!"
by Benjamin D. Haynes January 11, 2006
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