Was wondering what is the best PPC site to advertise on and what is the best method? Cost per click or Cost per impressions???
CPC is kind of better, although I'd say CPM can be efective as well, for popular products. but i guess the major ad network companies like admob, mobgold, adsense, etc, are CPC based.
Both CPM and CPC methods are good and worth to try but CPM ads are more preferable for big-brand advertisers.