How this works is they get people to install the "alexa toolbar" which gives them extr info about sites they are visiting, and they track who goes where. They then extrapolate from their users the traffic to websites, and come up with a ranking.
It ∗is∗ flawed because the sample isn't random - they only use data from alexa users, who probably have certain tendencies because of the characteristics of the demographic. for example, go to their "100 busiest sites" and you'll see alexa right near the top (#5 or 6 or something). of COURSE this is waaay out of wack, because alexa users ALL go to the alexa site, therefore messing with the data.
I use aalexa every once in a while for my business to get an ∗idea∗ of the traffic/links to a site, but i always take it with a grain of salt & also use other data from other sources (sometimes they vary wildly)
paul
http://www.alexa.com/data/details?amzn_id=&url=synthtech.com
maybe y'all have seen this before, but not me!!! I don't know quite what to think of it. It sort
of gave me the creeps.
Paul S.
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