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It takes awhile for Google to properly index your site which makes most of the ads not to show up.Totally untrue. If the old-style code is being used, then adverts will show up straight away. If the new-style code is being used, then about 10 minutes.
I did it to another page in the same section, and renamed that to 1.html and again, the link units appeared.I was about to write to John (AdTrafficQuality) about this and let him know. I rechecked the 0.html 1.html etc. and now those link units are not showing. Oh well, less money for Google, less money for me.
Totally true. Google supports my theory:
Relevant ads should appear on your pages shortly after you add the code, but sometimes it can take up to 48 hours for ads to show. This is because our crawler has to visit your page and determine its content so we can serve targeted ads.
Um, what does any of this have to do with what the OP was talking about?Similar problem?
Half of my pages in a domain are not showing ads today.Wa the original title. Although it is wrong to assume anything, it is fair to say that it gives the impression that they were there yesterday but not today.