Forum Moderators: martinibuster
Image-ad earnings did not change for my niche. First time i tested image-only ads on my site about 3 month ago. Payout was the same per click. But image ad click payout is much lower than regular ad payout. So I would not suggest to change to image only ads unless page is performing poorly.
Now Google also serve video ads. Few ads I saw on my site were image ads with play button. When user clicks play button it loads and play video (I think so, never tried). Now the tricky thing about video ad is you will be payed only when user clicked play button, and than clicked ad again when video finished. So you need 2 user clicks to get one click in your reporting. Something similar to "link units". I may be wrong here, but it seems to me I saw this info in adsense faq.