I used to be displaying adsense ads for everyone in my forum. Then I noticed that most clicks come from guests, and that members hardly click. So, I made a skin for guests and used adsense only in that skin.
Now, I read somewhere in here that CPM also counts in revenues. So, m question is: will showing adsense in all skins, for members and guests, increase my revenues? I thought that my earnings arew done only from clicks. My pages gets viewed 10 times as much, if I counted members. If only viewing the ads makes revenue, then do you advise me to display adsense for everyone then?
Try signing up with one of the banner networks for cpm only. Such as Fastclick or Tribal fusion. That way you will be covering all basis and also be making a little passive income to add to your adsense income.