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lmo4103 - 12:30 pm on Oct 5, 2006 (gmt 0)
>> There is no possible way that google would tank webmasterworld. << That sounds like it might be some kind of magic trick.
You might be interested in investigating this gem from Duplicate Content - Get it right or perish:
When Brett put a noindex tag on the site Google delisted the whole lot within weeks... Once it was removed back it came. [webmasterworld.com]