How best to setup advertising inc revenue share on multi nerwork?

Hi, i am in the process if setting up a multi blog for niche activity and would like to know how best to setup advertising on the users blogs anc control panel

I will have 4 member levels

free
ad free
plus
premium

I would like to offer ad revenue sharing, though not sure if this should be for all users or just plus and premium?

What plugins would be required?

Anything special i will need to do to configure it?

thanks