He seems to think this has never happened before, but I can remember Google search quality apparently declining repeatedly in the past... sometimes it seemed to

He seems to think this has never happened before, but I can remember Google search quality apparently declining repeatedly in the past... sometimes it seemed to return all the way to where it had been, and sometimes part way, but it isn't as though this is unprecedented. Additionally: when was the last time you clicked through to a page that was nothing more than a legally copied, properly attributed Wikipedia entry encrusted in advertisements? Never, right? It's not too common, but it's not like it never happens. Again, at times in the past, this has happened regularly for a while, to the point where you have to add "wikipedia" as a search term, but it has always returned to normality after a few days or so. Since this happens from time to time for me, I'm wondering now if Jeff has been doing something right that I'm failing to do when searching.