AdSense for Search: When Does it Perform Well?

And When is it not a Profitable Option?

[dyvel]

I wonder how much it would help my daily earnings if I added adsense for search to my domains.

I know you would say: try and see for your self, but what are your experiences with it?

[nbhp]

I have "adsense for search" on a small site and it only accounts for 5% of the revenue. Placement is on the bottom of all the pages.