tedster - 10:29 pm on Aug 27, 2011 (gmt 0)
These four areas all do seem to be part of what Panda is looking for. Another area I've become sensitive to is "SEO text" - somewhat related to third item, but it can even be just one page if the content is essentially written not to inform visitors but only to rank.
That kind of page is often monetized by advertising, and if it's not CPM but PPC, then the template often downplays the actual content - to make ad clicks more likely. That's where the idea of "having too many ads" came from, in my opinion.