Hi there, I get around 900 impressions daily on one site, but only get paid for clicks....something I've done wrong?
advertisers have the choice if you want to pay by cpm or/and cpc. Select image ads only to have a greater chance of getting a cpm advertisers. You won't make much cpm money off any network with 900 impressions.
It's not your choice to get CPM ads...Adsense displays the most performing ads they can give to your site.