still good and the best bitmedia
CPM mean "Cast Per Mile(Impression)" it means CPM sites pay users just for the impressions and views of the ads which placed in user's sites, CPM not require any clicks on the ads to get payment. when the ads get total 1000 views your balance will be added to your account.
Bitmedia is not even A CPM network. bitmedia is a PPC(Pay Per Click) it never pay just for impressions. it always require visiters to click the ads first..
that's the reason why CPM sites pay lowest amount than PPC,
MellowAds is a CPM sites so its earning is also less then bitmedia.