You all may have noticed this already, but I just found something interesting. Chitika and AdSense count impressions quite differently. I took my adsense impression numbers for all my sites that I also use chitika on. Here are the impressions from yesterday: AdSense: 306 Chitika: 1036 So say, just for the sake of argument, that my AdSense CTR is reported as 4%. Also say that Chitika is reporting a rather lower 0.67% (these are not real numbers). This sounds like Chitika clickthrough is far worse than AdSense. But if you use google's impressions # instead of chitika's, my chitika CTR jumps to 2.2%. The point is that either Chitika's impression may be artificially high, or Google's may be artificially low. But if you're comparing Chitika CTR to AdSense, you need to adjust the impressions figure so you're comparing apples to apples. K bye, Gary
I think what might be happening here, by the way, is that Chitika is simply counting each time an ad block is displayed as an impression. So whenever someone hits the front page of one of my blogs, chitika records 10 impressions. So even if every single person who hit this page clicked on a chitika ad, my CTR is still only recorded as 10%. Google, on the other hand, may be counting each pageview as an impression, rather than each ad unit. That's my theory anyhow. Cheers, Gary
You're probably right, Gary. Chitika is probably not counting a page as an impression, but each ad - no matter how many. Have you noticed that if you put more than 3 Google ads on a page, they won't show? Google KNOWS how many you are showing. Chitika, on the other hand, doesn't really care how many you show...
Chitika counts each ad block as an impression. I have five running across my page and you can check the channel data and see that each ad block displayed makes its own impression.
You can view adsense ad displays instead of page impressions as well. Toggle that setting in your adsense report and see if they match up more. If you have the same number of placements, of course.