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arubicus - 10:30 pm on Mar 14, 2007 (gmt 0)
I wouldn't be concerned about a single page either but a site as a whole to get knocked out. That would be more of a review situation.
"To go from #1 to page 7 not only seems crazy from a ranking point of view (i.e how can a legit page that did rank so well instantly be disregarded) but it would also be very damaging to most businesses."