BUT
In theory the Ad ranking is CPC x CTR (where the last thousand impressions is weighted 50%, the next thousand 25% and so on, PLUS CTR is weighted more heavily than CPC).
I am sure there are other factors too, but this is what I can get out of Google so far.
So, based on this you would have thought you would be able to make sense of the rankings.
Not so.
I work with two companies who happen to bid on the same keyword.
Company 1 has double the CTR and pays double the CPC ... yet (sometimes) appears below company 2.
Has anyone had a similar experience or can anyone make any (Ad)sense of this?
SimonM
[webmasterworld.com...] [/url]