I'm at a loss, since the beginning of October, the CPM for my adsense has gone down 50% which is killing my revenue. There have been no changes on the site. Has anyone else seen such a big shift in revenue.
Hey, I want you to remember this number "24". Now leave the thread everyday and think of that number. When you come back after a few days you'll be able to remember it. This is a hot topic issue with ad placement. After a while returning members may be remembering what's an ad and what isn't. It's very easy to do this. I'd try playing around with your ad placement. It also could be that ad blocker is being down loaded like 500k times a day or some huge number like that. This causes your adsense to be virtually worthless for many visitors who can't see your ads to begin with.