Whitey - 11:18 am on Aug 28, 2011 (gmt 0)
some more permutations around the above :
Aggregated content sites with little added value
Mashable content sites with rearranged aggregated, content
Machine driven content sites with scripted and repetitive texts
Much of this seems to resemble an upgrading of the duplicate content filtering, both internally and externally. However, I'm not sure that sites are returning with the same speed of reversal.