cpa, cpm, cpl, cpc, ppc in these ad types which ad type gives more revenue & better look to website. currently i am using ppc (google adsense).
Adsense and similiar-type ads are the worse, as they are all too typical, and thyeare seen everywhere, thus many times many of the visitors' eyes will pass right over them. The best ads are the ones with pictures, a funny tone, and or something that is bigger than the usual-size text ad.
But it is well known that google pays more than any other network? If still you have this type example then show me that webpage. I will visit & see how much that ad is impressive?