Welcome to WebmasterWorld Guest from 22.214.171.124
And today seems to be even worse.
Just got a message on Webmaster Tools about another of my sites having a 'significant decrease in traffic',I've had that twice, recently. Both were for the same (deep-linked) page. No adverts on that page either.
Maybe that should change...
I think Google has made it clear that they do grade content in many ways