Public AD from time to time

What's wrong with it

[rosyanne]

I don't know what's wrong with my site but I get public AD from time to time. I remeber I posted here for the first time when I saw public AD on my site and it was returned which happened about 1 week ago. But then, I've seen public AD on my site 20 hours ago when I went to bed and everything seems to be all right when I woke up. But now, it's off to public AD again.

Anyone have a clue what's wrong with it? As I am new to adsense(only in for 15 days), I have no idea what's going on.

Thanks,
Anne

[Sanenet]

If you have only a limited selection of advertisers for your niche, then due to their budgetary constraints sometimes there ads wouldn't appear, so you'd get PSAs.

[rosyanne]

Thanks Sanenet,

I think that's not the case. It is wide enough I believe.

[Sanenet]

The way adwords works is that if you put in a daily limit that is less than the amount required, your advert is "rotated" throughout the day. So Adwords might not have sufficient inventory for your site.

Try creating an alternate ad to replace the PSA

[rosyanne]

It has been a day now.
And the strange thing is, I still have clicks coming?

How do I create a alte if you don't mind share? I am new to all this.

thanks,
Anne