Media Metrix - what is it

[Haleden]

I'd like to know more about comScore's Media Metrix, what information it gives about specific websites, and how reliable that information is. Is anyone familiar with this service?

[Matt Mickiewicz]

comScore Media Metrix tracks US-traffic based on a panel of users. They project that panels Internet usage to the whole US internet population.

comScore is heavily relied upon by advertising agencies and media buyers.

[Haleden]

Ah, so its based on a panel of users. That makes sense, I was wondering what they based their data on.