Brett_Tabke - 3:23 pm on Jul 2, 2008 (gmt 0)

> quantcast, compete, alexa, media metrix

Here's the thing about that: Googles service is the worst it is ever going to be today. While at the same time, those other services have pushed their technology to the limits. Google's data acquisistion machinery and traffic is only going to make G's data set better and better.