so in other words, for 100,000 impressions at $50 CPM would be $5,000 (click through rate could be anything from 0% to 100% , but realistically 15% > 20% is quite possible)
[google.co.uk...]
bearing in mid Google is phasing these out and will be moving to a CPC model, basically Adwords.
Shak
rates have ranged from $10 CPm to $75 CPM that I am aware of.
there were incidents of people paying quoted 3 times their original rate when it came up for renewal, so potentially $200 + CPM.
and trust me when I say even that was cheap considering what "keywords" we are talking about.
$30 > $50 "used" to be the norm, not sure what the story is now though.
Good luck
Shak