I have been having a good play on instant this morning and have a concern regarding AdWords advertising and how this affects impression count and therefore CTR.
I did a little test ( though have no answer

) using the search term online marketing. And typed as below
on.....................this displays online gaming adverts
online.................continues with the online games adverts
online m..............this displays online movie adverts
online ma............this displays online maths adverts
online mar...........this is now displaying online marketing adverts
Now, if I was one of the companies with an online game, online movie or online maths advert, my advert has been shown, so technically it is an impression. None of the gaming, maths or movie adverts are relevant to what I was actually looking for therefore I am not going to click on them.
So, how does this affect the CTR of the games, movie and maths adverts???? As CTR is a big factor is calculating Quality Score, if the impression IS counted, the likely outcome will be a higher CPC.
Wondering what anyone else thinks as I can be over analytical at times
