[thelist] log analysis

Peter Van Dijck peter at vardus.com
Thu Jan 25 06:04:31 CST 2001

>Does anyone know how people like MediaMetrix and Nielsen Netratings keep a 
>supposedly accurate track of "unique visitors".

I guess they guess.
There is no foolproof way of tracking unique visitors, but I would like to 
find out what kind of error margins they have going? I'll do some research 
and post back to the list if I find out anything.

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