I am with Philip,

There are several CPA offers that only require your visitor to enter ZIP, or email and once they complete that offer you will get paid from $1 - $2.

Is that simple, and if you are not willing to drive traffic through PPC or paid advertisings then it requires some work and time, there is nothing to loose.

I would say that CPA converts well than ClickBank or PayDotCom.

This is Just My thoughts.