Lot of bloggers like me don't have much control on how many Ads are shown on each page if we embed the ads in each post.
I am hopeful that this will be solved as soon as possible because such blank spaces on website make it look very bad.
I have read about adsense split testing on one of adsense tips pages, and have found that this is alright with adsense.
To overcome the current issue i have written a short solution, though i am still waiting for a thumbs up
from adsense team before we can use it on our websites.
All i am doing is replacing the Ad unit with link unit after first 3 Ad units.
I have given it a short test and it works fine.
First of all add the follwing code in your Head element.
<head>
<script type='text/javascript'>
var varstr = 0;
</script>
</head>
After that you have to use the follwing code in every Content Ad unit, make sure you copy paste the whole Ad code variables i have left out colour and channel variables for now.
<script type='text/javascript'>
varstr = varstr + 1;
if (varstr < 4){
google_ad_client = "your pub-id";
google_ad_width = 468;
google_ad_height = 60;
google_ad_format = "468x60_as";
google_ad_type = "text";
}else
{
google_ad_client = "your pub-id";
google_ad_width = 200;
google_ad_height = 90;
google_ad_format = "200x90_0ads_al";
}
</script>
Tip : Replace all { signs with & lt; remove the space between & lt;
You can give it a short test but please do not use it untill its confirmed that adsense is not against such code variations. I will update you guys on this whenever adsense support team replies to my email.
Any questions? please post them in comments section.