You didn't read the original specs....
They requested a banner ad rotation system that allocates the ads on a
fixed ratio, not by number of monthly impressions. I copied the specs below.
I sell banner ads on one of my sites also with this method - a fixed
monthly fee for a % of impressions with no guarantee of number of
impressions.
Al Musella
World Wide Websites
Specs:
===========================================================
The way the banner displays are going to work is this....
All Fusioneers.com partners are entitled to a free banner ad on our
site. People who pay a monthly fee will obviously be given a far greater
weighting factor than the freebies.
So, our plan was to do something like the following:
All freebie ads combined would account for 1% of the total weighting factor.
We would then sell off weights in blocks of 10%, 20% and 30% of
impressions until the maximum of a 100% has been reached. The unsold
weight blocks would display a "Your Ad Here" ad.
So, in other words, when we display the ads, they will be called at
random, but I want the weights to affect their odds of being displayed.
======================================================================
At 08:08 AM 4/14/2000 -0500, you wrote:
>That is a good idea. The only problem is that media buyers and/or
>companies buy blocks of a set number of impressions. Your proposed method
>does not allow for traffic fluctuation and site availability fluctuation.
>Each ad campaign should be based on a set number of impressions then
>progmatically compared against the average impressions for the site. This
>can easily be accomplished by using a nightly task that calculates the
>average site impressions for the last 5-7 days then re-calculates all
>campaigns based on the new average. This ensures that if a buyer purchases
>100,000 impressions for 30 days, that is exactly what they get.
>
>Chris Terrebonne
>----------------------------------------------
>Original Message
>From: "Al Musella, DPM"<[EMAIL PROTECTED]>
>Subject: RE: banner ad weighting....
>Date: Thu, 13 Apr 2000 15:40:27 -0400
>
> >There may be a much simpler way:
> >
> >For each ad, just have 1 field that specifies what % that ad should have.
> >Whenever you add / edit an ad (maybe use a trigger), have it then fill in
> >(or update) 2 more fields, call it N1 and N2, with the numbers from 0 to
> >100 which represent that fraction they should get.. for example:
> >
> >
> >Ad title Percent N1 N2
> >Ad1 20 0 20
> >Ad2 50 20 70
> >ad3 30 70 100
> >
> >Now just generate a random number , R, from 0 to 100.
> > Look for the ad where R is between N1 and N2
> > I did something like that, and the ads come out remarkably close to the
> >predicted frequency!
> >
> >Al Musella
> >World Wide Websites
> >
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