I earn from kontera 1/6 of my adsense earning when used together on the same site, roughly.
What a pity the referral programs only available via email invitation
So when you invite
webmaster@ofsomesite.com to the program, and this webmaster uses
webmaster@ofsomesite.com as the email when they register the program, you earn credit for referring that webmaster
That's not make so sense really
but if you have a good list of opt-in webmasters, why why not... could be profitable to advertise them...