I’ve noticed that Google has been testing with a scroll button of some sort in an attempt to display more
Google Adsense Scroll Buttons A Possible New Feature?
Previous post: 3 Plugins That Improve Your Blog Comments
Next post: Track Your Blog Stats For Free

{ 2 comments… read them below or add one }
You don’t have to add it. Google adds it on its own. And that is a feature which came into existance a month back i suppose.
The randomness in its display might be related to the strength of the keywords in the post which bring in more adverts. Thereby Google offering a scroll so that the other ads targetted by the post are not missed out.
I am curious as to whether anyone notices a change in their clicks/earnings with regard to these scrolling arrows.
I kinda wish there was a way to disable them.