There are companies that tried to do that in the past and got a lot of bad public exposure.

They have some [measurement] efforts going on, but it is still a big area for improvement for most of them.

We're expanding and maturing this category beyond the 'rear-view mirror' most Web analytics companies have today. We're taking advantage of the Web analytics foundation to improve marketing performance.

We do not track cross-site traffic. We do not offer any services that let you understand cross-domain traffic at unrelated sites at all.

We said before the game, it was going to take everybody to get this done. I think everybody took that to heart and came together.

I think we're both pretty easygoing and that's why we remain friends to this day.