Hi Dears, I am thinking to start revenue sharing articles sites. and this site will be have the same functions as DP, that ads with authors adsense ID will be displays on the articles authers submitted and on authors profiles. And at start there is 100% chance that the authers ads will be displays on authers submitted articles for few months, and then I will reduce to chance about 50% (plz suggest it ). But one thing that authers ads will be always display, with or without loging in, so I am worry about this point that there may be some authers will generate invalid clicks by themselves on their ads. as this is against google TOS. Plz comment on this, any suggestions will be welcome. Thanks