Have you ever seen in your Adsense account that you don't get any click, but you earn some dollar? For you who haven't known why this can happen, that's called Adsense CPM which stands for Cost Per 1 Thousand Impression. You don't have to get any click, if certain ads have displayed for a thousand times on your page, then you earn some dollar from it. The cost is also vary depends on the advertisers deal. But many publishers are sure that adsense offer very low cpm. Is this true or it's just a personal opinion?
Before we get into more complicated case, it is wise to know the basic concept of Adsense CPM. Adsense cpm stands for 'cost per one thousand'. The perception among adsense publisher is that image ads are paid through CPM method, but text ads is paid through Cost per Click or CPC. But it's totally wrong. According to Google Adsense Team's statement, both adsense text ads and image ads can be paid either CPM basis or CPC basis. So if you set your adsense ads to only show image ads, you don't have to surprise if you could see cpc image ads, and otherwise, if you set to only show text ads, you don't have to surprise if you could see cpm text ads.
::. Google Adsense CPM rates is too low?
This is the most common perception among adsense publisher that google adsense cpm rates is lower than other advertising network. Actually, nobody has no idea whether this is definitely true or definitely false. Let's get back to the basic concept of Adsenze CPM. The cost of adsense cpm varies depending on the advertisers deal. We can't say that 100% adsense cpm rate is low. If you read some adsense success story. You could see that their cpm rates is not so low, even they get decent income from adsense cpm basis. This could be happened for some factors such as quality content of the sites, and also the content's niche. I believe if the content of the sites targets a specific niche, the cpm rates could be high as well.
More about adsense cpm : Adsense CPM - knowing the fact can pay off