Just wanted to report something though to the Googlelites and anyone else running user generated content -- Strangely, I'm seeing an increase of spam in my comments (I run a blog that has not escaped Panda's clutches just yet) where someone takes an article from somewhere and dumps it as a comment.  I review every single thing that passes through so I am noticing this more and more.  The comments look legitimate and nicely written until you check and realize it's a portion of someone else's content (from another article).  Hopefully the Panda changes don't encourage widespread copy/pasting of content and having it appear randomly into forums and blog comments.  I've been fooled by this in the past, but recently, have seen this happening more often.  I am not sure how much this counts for duplicates, but want to caution all webmasters who accept user material like this to check for dupes as well.