Adsense ads not displaying

on all 3 of my sites

[richards1052]

I notice that every so often my Adsense ads stop displaying for a period of time & then resume displaying. Now, I've noticed they're not displaying once again. I have an ad tower in my sidebar & periodicallly I insert ads in my individual blog posts. But I do not have more than 3 ads displaying on any single pg.

I looked at my Adsense acct. & saw I was credited with some revenue today & yesterday which means that the ads must be displaying somehow for some viewers. But can anyone give me any ideas why I can't see them either in my sidebar or in any posts?

I have heard that Google will sometimes not display ads if not enough keywords appear in content or there is not enough traffic. But I'm not sure whether this is what's happening to me. And if so, why would the ads go missing for an extended period of time (several wks.).

I have 3 blogs and the ads are missing in every one. If you'd like to review this PM me & I'll provide site URLs.

[celgins]

A couple of things to look for and think about:

1. If Google does not have adequate ad inventory to display ads on your site, they will likely show PSA's...(unless you have PSA's disabled)

2. Have you tried accessing your websites/blogs from another computer?

3. If the problem is local to your computer, it is possible that you have some form of malware that is disrupting your network settings.

[Roadkill]

Hmmm... happened to me today as well, looks like it actually did yesterday at some time based on yesterdays data. Only showing half of the usual impressions.

No PSA's nothing at all, all other ads showing like normal. Weird... never had this happen in years.

Guess I just have to wait a bit... :(

[alika]

I experienced this yesterday as well. I only have 2 ad units on my homepage and the leaderboard was showing ads just fine, but the medium rectangle was not. It was also not showing the alternative ad that I had placed in the site. The ads would come back intermittently. I had to repost the Adsense code and upload the homepage, and still no ad. I don't mind Adsense disappearing, but at least it would be better if my alternative ads show up, but it was just a blank space.

And I'm in a space where there are plenty of advertisers, so shortage of ads is not a problem.