[The original exercise, with an Internet link added. -- The Mgt.]
Obtain a copy of High Weirdness by Mail, by Rev. Ivan Stang, (Simon and Schuster, 1988), a catalog of dissident groups in the U.S., covering the full spectrum from the fairly plausible (and possibly important) to those that appear totally "nutty" to almost all the rest of us. Pick out five groups that seem sane and plausible, and five that seem totally crazy, and send for a packet of their literature. (Stang gives mailing addresses for all of the groups he reviews). Study the literature and discuss in the group.
Do some of the plausible groups look less plausible when analyzed operationally and skeptically? Do some of them seem, maybe, as important as a dissident group in Nazi Europe publishing evidence that the moon doesn't consist of ice? And -- do any of the "nut groups" look less nutty when you analyze their arguments?
[The Church of the SubGenius has assembled a handy list of "High Weirdness by Web" links, so that you don't have to track down a revised copy of the book and wait for the literature to arrive! The link is here. All praise to the Rev. Ivan Stang, the Discordian Pope of Cleveland. -- The Mgt.]