yes another trick. look, ive read some adwords ebooks, and maybe this could work.
if your clicks value are low, just move them to the bottom of the page to reduce ctr..
what?? yes, read this carefully:
when you are an advertizer, and your ads are not been clicked, google increases the value of the click: for example,
this ad:
free ebooks and more
and this:
25$ ebooks
the first one will be more clickable, so it will pays for clicks.. .2 to google
the second, will be less clickable, so they will have to increment the click to .5 at least.
now, returning to adsense
yes. if you get a lot of clicks, their value will be less.
this is just an introduction, let your imagination do whatever you want with these tips.
for example, after 1week, you should place again the ad in a viewable zone.
please comment about this!