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The multiple ads language is confusing, I agree. At this point, there's no way to assure that ads won't be double-served if two layouts are on the same page. So multiple ad layouts on a page are still not allowed... I think the language is there so that we have room to introduce new features as we move forward.
I'll make sure to stay near my computer, in case you have more questions :)
So multiple ad layouts are not allowed but mutliple sets of Google ads are allowed if they are the same layout?
I should have used the term 'ad units' to be consistent - you can have only a single ad unit per page, irrelevant of which format you use. So, either one leaderboard, or one inline rectangle, etc... You can't have multiple pieces of ad layout code on the same page.
All to say, nothing has changed from yesterday, with regards to this issue :)
So when you say "Multiple ad units may be displayed on each Web site page, but no ad unit can contain any advertisement in common with any other ad unit." in the FAQ you are referring to a new feature that hasn't been announced yet. Perhaps a new adsense box where we can choose our advertisers *speculates wildly*
The question asks if one can display more than one set of AdSense ads on one page. The answer implies a 'yes' with the 'no' being somewhat ambiguous.
Let me state an analogy:
"Can I read the newspaper?"
You may read the newspaper, but each each newspaper must only have one ad.
Since I can't know if the newspaper has an ad without reading it, I'm left scratching my head.
I am wanting to experiment with the new Adsense ad sizes, but I can't stop running Fastclick CPM Adsense ads because so far they actually match my content far better than regular Adsense does, and I make much more money with them. It would be great to have the ability to run both.
I saw someone display two different sizes of adsense ad on single page, the site is still working, so I thought two more adsense ad units might be allowed. But we need the authorized answer for this.
I've written to them about it and it has been five days, no reply. I've never had to wait this long for Adsense support to reply and it's frustrating.
If anyone has written to adsense and asked for clarification, please let me know what Google's response was. I've gotten no word from them.
However, the email contained one crucial comment, which would be handy to have said somewhere in the TOS, even if it is temporarily to allow for developments.
It said I can only have one instance of the code on a webpage. Now that I can understand very clearly.