New Web Metric (Score 1)

I, for one spend most of my time on google. But that's iGoogle. It's like my second Desktop. All my feeds organized into separate tabs. I have one tab just for "shopping." If google asked me to place ads for that tab alone, I might say yes, Of course, RSS feeds like engadget have ads embedded to the bottom of the posts, so I get them anyway.
I digress, though. Google's gonna make their money on click-through, so it's not important if anyone spends any great of time on the search page, because it's a search engine!!! I don't know how, if at all, this Nielsen thing will hurt them, other than getting fewer advertisers.