Lanefan
Victoria Rules
That link tells me lots about what Google Analytics does for the site owner and how it gets information/data based on visits, usage, and so on but says nothing about where/how it actually gets its age-gender-etc. information about users.
Don't get me wrong - I don't care whether you-as-a-site-owner know my age etc. info or not. I'm more curious about how accurate the info is that GA is giving you that it can't hard-mine through what/where/how I browse.
Lanefan