Which ad units are working on my page?

Hi,
I want to know if there is a way to see what actual add units work best on a page?
I run 2 add units on my site, and want to know which one is being clicked on more?

Is that possible and if so how?

 

The easiest and most simple way is use differrent channel in each ads on that page.

 

Yep. That's the way to do it. Log on to your adsense account and create channels there. When you generate each adsense ad code, add a channel to it.

 

Note that you have a limit to how many channels you can use