i asked one of my friends of my friends in a US to slick on my sites adsense , ()the top one, one day i got 18 cents, another 38 for the same click! and it wast just 1 click a day, so i can clearly say that google is cheating, as price for advertising remained 99% absolutely the same all the days, i was advertising, so i know! also i`ve read somewhere that google now must provide formula, to public, in order to keep their monopoly bit tighter. Google - is a F@@@@@@ Thanks 4 reading
the change of rate per click is probably due to the change of ther advertisers adwords program. the advertiser must have edited it and cause the click rate differently. so there's no cheating.
There is no cheating involved. If your website enjoys poor traffic then Google may put very low paying ads at your site. These ads will change every time with different keywords. So your friend might have clicked different ads that pay 18 cents, 38 cents and so on.
i think they have a system in place to check unique IP. If Google is really cheating, more and more people will find it out.
Google is not a little boy it traced all Ip where you can login your account if any clicks make in same Ip google will trace it and get ban to user........... see my blogs in signature...
Got adsense approved a month ago. I was excited that I announced it. Some asked how in heaven my blogs would earn from adsense. I explained to them how. The next day, my adsense account was disabled. Thanks for the support and for the people who care so much for me that they want me to earn.