What is the time gap between the ad rotation (1Ad - 2Ad) in GAW?

How is the Ad serving % calculated for an Ad? What does it mean if one Ad has 34.5% ad serving and 50% for another?

Is there any relationship between the Ad serving % and Impressions?

These were some of the questions I had in mind. It would be great if someone can clarify these. :)

>What is the time gap between the ad rotation (1Ad - 2Ad) in GAW?

not sure I understand that.

>How is the Ad serving % calculated for an Ad? What does it mean if one Ad has 34.5% ad serving and 50% for another?

Google does not give out this data. some third party sites ping google to find out this data. the % served is how many times out of ever 100 pings in which the ad is displayed.

>Is there any relationship between the Ad serving % and Impressions?

direct. 100% = all impressions for that word. 50% = half of them, etc.

Okay actually the algorythm is not as guarded as organic... here it is.
If there are three bids it goes like this.
Bid 1 is $1 and has a 2% CTR
Bid 2 is 75c and has a CTR of 1%
Bid 3 is 45C and has a CTR of 1%

Bidder one gets the top spot but pays (CTR2/CTR1) or 1/2 of bid 2 ie. 37.5cents.
Bidder 2 pays (1/1) of bid 3 or 45 cents for the second spot (importance of CTR plays big here)
Bidder 3 as lowest pays 5 cents!

How close is that explanation AWR?

I think you forgot to do the +1 cent part :D