one ad unit at one page, click rate will be higher?

using least number of ad unit on your webpages..

[Knowledge seeker]

when I am putting the more ad unit on the page lets suppose say three, my click rate go down, when I put the single ad unit on the same page and if it is click the rates are high. anybody else check this?

[robzilla]

The more units you place on a page, the higher your CTR per pageview should be. Individual ad units, however, may get a lower CTR when more ads are on a page, simply because there's more for the visitor to click on. Thus, chances of a click are split among the ads, but overall your CTR should go up. Make sure you're using channels properly (avoid overlap in reports).

[vero]

Depending on the topic of your page, sometimes there may not be enough ads to fill three ad units. So limiting a page to one ad unit may mean better quality ads and more clicks.

[HowYesNo]

sometimes you'll earn more with single ad unit than 3 ad units + 3 link units + search :D

it all depends of site's niche

[edited by: HowYesNo at 10:29 pm (utc) on Aug. 11, 2008]