Topic: What is the cookie '__utmz'?

I was cleaning the cookies for Firefox today and noticed that a lot of them use the variable names '__utma' and '__utmz'. Several seemed to have been sent from know ad-tracking sites, but then I saw that a lot are from legitimate sites like the Asylum.

I searched for '__utmz' on the net and got a lot of references to JavaScript code that is setting cookies with the name __utmz.

What does utmz mean and why is it so commonly used as a cookie name?

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-- not necessarily stoned... just beautiful.

http://www.google-analytics.com/urchin.js

Dan @ Code Town

A better explanation would be that it is used by http://www.google.com/analytics/ to track the sites users. This data is sent to google which then has reports that the site user can access about user's browsing habits.

Dan @ Code Town

about users who haven't blocked *.google-analytics.com/ and the likes.