Hey guys, been a while since I last posted. I have 5+ sites in total, 2 of them are impacted by Panda (badly).
The sites that aren't impacted have large numbers of pages, a much larger range of keywords. Some even have extremely thin content (i.e. images).
The sites that Panda has crucified have a tight focus on particular groups of keywords.
From my observations it seems like Google looks at the number of pages you have & perhaps the volume of of the keywords that you're targeting. Then they might flag you for being above a certain threshold - since you're more likely to just be trying to get traffic than providing "value."
Anyone else experienced a recovery by tuning down the commercial intent of their titles & h1's? Or by adding more content that has less of a commercial nature?