Earnings depends on users effort, means earnings depends on your membership type, making referrals [rent/direct] , , etc
When you reach minimum payout $2 then eligible for get paid and paid system depends on your choice of payment method.
As being upgraded member
you get guaranteed $0.10 to $0.16 more in ads.With standard advertisements your earning will be $0.06 to $0.10 every day.
-As a standard member you earn only 10% from your referrals.Being a premium you get 100% from your referral clicks and commision for every purchase or upgrade your direct referrals do.
-You get higher rented referrals limits.
-Finally,you can rent and request a payment more often than a standard member.
Here is the list of the supported payment processors
In order to find your referral link you have to go to your account and then on the left menu click on "Banners".There you will find everything you need in order to promote your referral link and get direct referrals