I noticed that whenever there are 3 or less ads on 728x90, the domain URLs would appear. When there are 4, the URLs vanish magically. I guess the leaderboard just doesn't have enough space for Google to put 4 of those domain URLs horizontally.
I hope this isn't one of the everyone-know-this fact.
Jenstar
7:33 am on Nov 3, 2003 (gmt 0)
:) I don't think it is one of those "everyone-knows-this" facts, because comments about this do pop up from time to time. It has been this way since they launched leaderboards, though.
Blue_Fin
7:38 am on Nov 3, 2003 (gmt 0)
It's not due to lack of space, as the space alloted for each ad when 4 ads are displayed on the leaderboard is greater than 120 pixels which is the width of the skyscraper which does include the URL. Same thing for the banner. When a banner displays two ads, the URL is never displayed.
And yes, this has been mentioned before. I included it in a post a few days ago, but I know others have mentioned it before as well.