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Re:Google Public DNS by conover on Thursday December 03, 2009 @02:27PM (#975011)
We don't correlate or combine your information from these logs with any other log data that Google might have about your use of other services, such as data from Web Search and data from advertising on the Google content network. After keeping this data for two weeks, we randomly sample a small subset for permanent storage.

It sounds like a good faith effort aimed at speeding things up to me.

Re:Google Public DNS by lsb on Thursday December 03, 2009 @02:52PM (#975082)
Just to be fair, 25% is a small subset, and if all the chrome installations use it as their default DNS, they'd have quite a lot of data.
Re:Google Public DNS by kluikens on Thursday December 03, 2009 @05:47PM (#975389)
I agree, but said data would be a sample from a user base that is far from the general user base of the internet, and Google's user base too. Data from Chrome browsers only would be heavily skewed.